Complete Guide to a Professional Workstation

The Dell Precision 5820 Tower is a top-of-the-line professional workstation, designed for users who demand maximum performance, reliability, and flexibility. This robust tower workstation handles the most demanding tasks — from 3D rendering and VR content creation to data analysis, machine learning, and scientific simulations. In this detailed guide, we will look at every aspect of the Precision 5820 — from the details of individual components, through expansion options and certifications, to practical use across various industries. We draw from verified manufacturer information and independent tests to answer all the questions even the most demanding "geek" might have.

Our company recently expanded its offering to include Dell Precision 5820 workstations in several configurations. Currently available models include:

• Dell Precision 5820 Tower – Intel Xeon W-2225, 32GB RAM, 512GB SSD, AMD Radeon Pro W5700 8GB
• Dell Precision 5820 Tower – Intel Xeon W-2225, 32GB RAM, 512GB SSD, NVIDIA RTX 3080 10GB
• Dell Precision 5820 Tower – Intel Xeon W-2225, 32GB RAM, 512GB SSD, NVIDIA RTX A4000 16GB
• Dell Precision 5820 Tower – Intel Xeon W-2295, 16GB RAM, 512GB SSD, NVIDIA RTX A4000 16GB
• Dell Precision 5820 Tower – Intel Xeon W-2225, 32GB RAM, 512GB SSD, NVIDIA RTX A5000 24GB
• Dell Precision 5820 Tower – Intel Xeon W-2295, 16GB RAM, 512GB SSD, NVIDIA RTX A5000 24GB

The individual configurations differ mainly in the chosen processor and graphics card, which affects the resulting performance and intended use. In the following sections, we will break down all the components of this workstation in detail, explain their significance and options, and show how the Dell Precision 5820 performs in various scenarios – from professional applications to gaming or server deployment.

Intel Xeon W Processor – Computational Power Without Compromise

The heart of the Dell Precision 5820 Tower is a processor from the Intel Xeon W family. These processors are designed for workstations – they offer a high core count, reliability, and support for technologies such as ECC memory and Intel vPro. Our configurations feature primarily two models:

• Intel Xeon W-2225 – A 4-core/8-thread processor with a base frequency of 4.1 GHz (Turbo Boost around 4.6 GHz). This chip has a TDP of 105 W and excellent single-thread performance, which is appreciated by applications dependent on high core frequency (e.g., CAD software, which often runs single-threaded). It is ideal for moderately demanding tasks and provides a balanced performance-to-cost ratio.
• Intel Xeon W-2295 – An 18-core/36-thread processor with a base frequency of 3.0 GHz (Turbo up to ~4.6 GHz). With a TDP of around 165 W, it is one of the most powerful processors for this platform. Thanks to 18 cores, it excels in heavily parallelized workloads – rendering, simulations, compiling large projects, or running multiple virtual machines simultaneously. The Xeon W-2295 allows this workstation to achieve performance comparable to smaller servers, but in a single socket.

Both processors belong to the Cascade Lake-W generation (Xeon W-2200 series), which supports modern instruction sets including AVX-512 and offers higher clock speeds compared to the previous Skylake-W generation. Thanks to AVX-512, processing scientific computations, financial simulations, or machine learning is even faster when supported by the application.

Real-world performance: In multi-threaded benchmarks (e.g., Cinebench R23 multicore), the Xeon W-2295 achieves many times higher scores than the W-2225, proportional to the core count. This means that, for example, rendering a scene in Blender or 3ds Max will run several times faster on 18 cores. On the other hand, in single-threaded workloads (CAD operations, an Excel script, older games), the 4-core W-2225 can keep up or even surpass slower large chips thanks to its high clock speed. The choice of CPU therefore depends on the nature of your work – the Precision 5820 offers variants for both extremes of requirements.

CPU upgradability: The Precision 5820 platform uses the LGA 2066 socket with an Intel C422 chipset. It supports Xeon W-2100 and W-2200 series processors, as well as related Core X processors (e.g., Core i9 for LGA2066). The maximum is the aforementioned 18-core Xeon W-2295. Newer Xeon generations (W-3200 series and above) require a different socket and chipset, so upgrading to the very latest processors is not possible. This does not mean the W-2295 or W-2225 are insufficient in 2025 – they still deliver excellent performance. If needed, within this platform you can replace e.g. a 4-core model with a 10-core or 18-core, provided you have a compatible BIOS. Dell supports these upgrades (according to documentation, the W-2295 is fully compatible with the latest BIOS). From an investment perspective, the Precision 5820 is flexible – you can start with a lower configuration and install a more powerful CPU later.

Up to 512 GB RAM with ECC – Reliability First

The Dell Precision 5820 workstation supports up to 512 GB DDR4 RAM when using second-generation Xeon W processors (Cascade Lake). There are 8 memory slots available (quad-channel memory architecture). Our offered configurations are equipped with 16 GB or 32 GB of RAM, but expansion is easy – simply add more modules to the empty slots.

Memory type – RDIMM vs. UDIMM: With Xeon W processors, the workstation uses registered ECC memory (RDIMM ECC). ECC (Error-Correcting Code) is a memory technology that automatically detects and corrects single-bit errors in data, significantly reducing the risk of system crashes and data corruption. This is critical for long-running computations, mission-critical applications, and work with sensitive data – thanks to ECC, the system can run stably even in environments where regular memory might fail due to cosmic rays or data transfer errors. Dell also features Reliable Memory Technology (RMT) Pro, which, combined with ECC, can mark and retire faulty memory sections after a restart before they cause problems.

Intel Xeon W processors require ECC memory, while the alternative on this platform were Intel Core X processors (e.g., Core i9-10900X, etc.), which only support non-ECC memory (UDIMM). In practice, however, most Precision 5820 workstations are equipped with Xeons, precisely because of ECC and higher reliability. The maximum capacity of 512 GB also only applies with ECC RDIMM modules and newer Xeons – in combination with Core X, the ceiling would be lower (typically 256 GB with non-ECC memory).

Real-world advantages of ECC: Why is ECC important? If you are, for example, rendering a multi-day job, running scientific simulations, or training machine learning models overnight, even a minor bit error in memory could cause an application crash or introduce errors into results. ECC prevents this – it automatically corrects single-event errors and logs multi-bit errors, so you have assurance of data integrity. In servers and workstations, ECC is the de facto standard as it guarantees continuous operation without unplanned downtime.

RAM expansion and upgrade: The Dell Precision 5820 has easily accessible memory slots (after opening the side panel and optionally removing the air shroud above the modules). Supported are DDR4 modules of 8, 16, 32, and (with the latest BIOS) 64 GB per slot. Configurations above 256 GB (i.e., installing 64 GB modules) require Cascade Lake-W processors for full speed; with older Skylake-W, 64 GB modules would run at lower frequency. All our offered configurations have free slots for adding memory. Installation takes minutes, and the Dell BIOS automatically detects new modules and sets the correct parameters (including ECC functionality).

Professional NVIDIA and AMD Graphics Cards – Performance for 3D, AI, and Gaming

Graphics performance is one of the most important attributes of a modern workstation. The Dell Precision 5820 Tower was designed to support a wide range of GPUs from entry-level to top-end professional graphics. The chassis and power supply can handle up to two full-size high-performance graphics cards simultaneously (total power draw up to 600 W). Our configurations include the following GPU options:

• AMD Radeon Pro W5700 (8 GB GDDR6) – A professional graphics card from AMD with RDNA architecture (Navi generation). It provides performance comparable to the gaming Radeon RX 5700 XT, but with optimized drivers for CAD, CAM, and 3D applications. It has 8 GB of memory, supports up to 6 monitors (5× mini DisplayPort 1.4 + USB-C output), and is suitable for graphic design, modeling, and moderately demanding rendering. This card does not have dedicated ray-tracing or Tensor cores like NVIDIA RTX, but AMD offers certified drivers for applications such as SolidWorks, PTC Creo, etc. For gaming, the W5700 also delivers solid performance – it can handle most modern titles at 1080p on high settings, or 1440p at medium to high settings.
• NVIDIA GeForce RTX 3080 (10 GB GDDR6X) – A high-end gaming GPU (Ampere architecture) installed in select Precision 5820 configurations. Although the RTX 3080 belongs to the consumer GeForce line, its raw performance is extremely high even for professional use. It features ~8704 CUDA cores and specialized RT and Tensor cores for ray tracing and AI acceleration. With 10 GB of fast memory, it handles demanding GPU computations and easily drives VR applications or GPU renderers. It is not officially ISV-certified for CAD applications (unlike the Quadro/RTX A lineup), but technologically it is very similar to the NVIDIA RTX A4500/A5000. In practice, 3D software will also run smoothly on it, only some professional features (e.g., loading large CAD models) may be slightly less optimized. For gaming, the RTX 3080 is excellent – it enables playing the latest titles like Cyberpunk 2077 or Baldur’s Gate 3 at 4K resolution on high/ultra settings, often above 60 fps.
• NVIDIA RTX A4000 (16 GB GDDR6 ECC) – A modern professional NVIDIA GPU of the Ampere generation (the professional counterpart to the GeForce RTX 3070). The RTX A4000 is notable for being a powerful GPU in a compact form factor – a single-slot card with a maximum power consumption of 140 W. It has 6144 CUDA cores and full support for ray tracing and AI acceleration (Tensor cores). 16 GB of ECC memory is a generous capacity for working with large datasets or high-resolution rendering. ECC on VRAM means the card’s memory can detect errors – once again a plus for reliability, e.g., in computations. The RTX A4000 is ideal for visualization, architectural design, virtual reality, and also machine learning (its tensor performance is around 153 TFLOPS in FP16). Thanks to the single-slot cooler with a radial blower, these cards can be installed in the Precision 5820 two side by side without a gap. Gaming performance of the RTX A4000 is also very good – roughly on par with the GeForce RTX 3060 Ti/3070, meaning it easily handles 1440p/Ultra or 4K/High settings in most games.
• NVIDIA RTX A5000 (24 GB GDDR6 ECC) – A high-performance upper-tier professional GPU, also Ampere architecture (comparable to the GeForce RTX 3080 Ti, but with more memory). The RTX A5000 has 8192 CUDA cores and 24 GB of ECC memory. It is a dual-slot card with a TDP of ~230 W, requiring one 8-pin power connector. Compared to the A4000, it offers ~40% more computational performance and larger VRAM capacity, which is appreciated by the most demanding graphics workloads and work with massive datasets (e.g., loading complete city models, training larger neural networks, etc.). The RTX A5000 supports technologies like NVLink – two A5000s can be connected together via a bridge to provide 48 GB of combined GPU memory (for applications that make use of it). For CAD, DCC (digital content creation), and AI, it is an excellent choice. For example, in rendering (Octane, V-Ray GPU), the A5000 significantly speeds up computation compared to the A4000. Using two such cards can achieve nearly double the performance compared to a single card (if the software scales linearly). In terms of gaming, the RTX A5000 is comparable to the GeForce RTX 3090 in many titles, especially thanks to its massive 24 GB VRAM, which is not limited by textures. For gamers, this means smooth 4K gaming even in VR or with ray tracing enabled (provided you use gaming drivers; Quadro drivers are optimized differently, but games run well on them).

As you can see, the Dell Precision 5820 can be equipped with very different GPUs – from cards focused on stability and precision (Quadro/RTX A with ECC) to a “gaming” RTX 3080 for maximum frame rates in games. The choice depends on the use case. The following section will therefore focus on how the workstation performs in specific scenarios and whether it is possible to combine multiple graphics cards simultaneously.

Two Graphics Cards Simultaneously – Performance Scaling and Cooling

The Precision 5820 Tower chassis supports installing two full-size graphics cards side by side. Dell specifies support for up to 2× 300 W cards (600 W of total graphics power) with the included 950 W power supply. This means it is technically possible to have e.g. two NVIDIA RTX A6000 cards (which are 300 W cards with 48 GB VRAM each) in one system, or as our customers ask – two RTX A4000s, A5000s, or a combination of cards. Dell originally offered configurations with up to two NVIDIA Quadro P5000/P6000 or RTX 6000 cards. Our specific refurbished units typically contain one powerful card, but the workstation is ready for dual GPU as well – it has enough PCIe slots and power connectors.

What does the second GPU bring in terms of performance? Utilizing two graphics cards depends on the software. In professional applications that can parallelize across multiple GPUs, you can expect nearly linear performance scaling. For example, GPU renderers (OctaneRender, Redshift, V-Ray GPU) will split the rendering task between both cards and cut the time almost in half. Similarly, in machine learning applications, when training a neural network you can use two GPUs either to process a larger batch size (which speeds up convergence) or for so-called model parallelism (when the model does not fit into one card’s memory, it is split across two). In AI content generation (images, videos), you can use two GPUs to generate more outputs in parallel, or for some special algorithms that can scale across multiple cards.

In practice, this means that, for example, two RTX A5000s with NVLink connection give you a combined 48 GB of graphics memory and very high performance for GPU computation. This allows rendering extremely complex scenes (e.g., an architectural model of an entire city with high-resolution textures) without having to limit detail, because 48 GB VRAM can accommodate even huge datasets. In AI research, you can train advanced deep networks on two A5000/A6000s, or run larger language models (more on this below). For video editing or visualization, this means, for example, smoother work with GPU-accelerated effects enabled, even while rendering in the background – one card can compute rendering while the other serves the viewport.

Cooling two cards: The Dell Precision 5820 has a powerful cooling system with a multi-zone arrangement (so-called multi-channel thermal solution). Inside there is a large system fan and directional tunnels that route air through the CPU and memory separately and through the PCIe cards separately. The workstation is designed so that even with two 300 W cards, it maintains safe temperatures under full load while remaining relatively quiet. Of course, when rendering on two GPUs, you will hear the rush of air – the fans on both cards and the case will run fast. But compared to a regular PC, the Precision has more robust coolers and better airflow, so there is no throttling (reduction of clock speeds due to temperature) even under sustained load. Most professional graphics cards (Quadro/RTX A) use radial “blower” fans that exhaust hot air out through the rear grille of the case, which is ideal for multi-GPU configurations because the cards do not heat each other’s air as much. Dell also allows monitoring temperatures and fan speeds via tools like Dell Precision Optimizer, or you can set a more aggressive cooling curve directly in the BIOS if you plan truly extreme continuous dual GPU usage.

Availability and installation of a second GPU: If you want to add a second graphics card to the Precision 5820, check that your power supply is the 950 W version (which our configurations have) and that you have free 8-pin/6-pin power cables – they are typically already routed inside. Physically, you simply insert the card into the appropriate PCIe ×16 slot. The workstation has 2 full PCIe ×16 slots (electrically ×16) directly connected to the CPU, which is ideal for two high-speed GPUs. You don’t need to deal with SLI as you would with a gaming PC – modern professional applications use cards independently. SLI (Scalable Link Interface) for gaming is no longer supported on the Ampere generation, so simultaneous dual-GPU gaming is not typically done (the vast majority of games do not support multi-GPU rendering). If you still want to use two RTX 3080s for gaming, some older titles could be set up for SLI mode, but this is generally not done today. Multi-GPU makes sense mainly for work and computation.

ISV Graphics Certifications and Drivers

The Dell Precision line is known for being ISV certified for many professional applications. ISV (Independent Software Vendor) certification means that the workstation manufacturer (Dell) works closely with software developers (such as Autodesk, Adobe, Dassault Systèmes, etc.) and jointly tests hardware with specific programs. The result is assurance that, for example, Autodesk AutoCAD, Dassault SOLIDWORKS, Adobe Premiere Pro, Siemens NX, AVID Media Composer, etc. will run reliably on the workstation with optimal performance. NVIDIA RTX (formerly Quadro) and AMD Radeon Pro cards have specialized drivers specifically for these applications and go through a certification process. Thanks to this, the Precision 5820 guarantees smooth operation in these programs without graphical glitches and with support for specific features (such as advanced stereoscopic display, synchronization of multi-monitor setups, etc. – features that Quadro cards support). Dell states that all popular applications are tested and certified to run smoothly on the workstation.

Regarding drivers – if you use professional graphics cards (RTX A, Quadro, Radeon Pro), it is recommended to install workstation drivers (NVIDIA Studio Driver / Quadro ODE Driver, AMD Pro Software). These drivers are tuned for stability and compatibility with professional software. Alternatively, for NVIDIA you can also choose gaming drivers (Game Ready Driver) if you primarily play games – you trade a bit of stability for possibly slightly more recent game optimizations, but in general, Studio Drivers are also sufficient for gaming. For the GeForce RTX 3080, there is of course no ISV certification, but both Game Ready and Studio Drivers work. For mixed use (work + gaming), you can switch between NVIDIA driver profiles as needed, or simply keep the Studio Driver, which is universal.

Also worth mentioning is technology like NVIDIA vGPU (virtual GPU) – some higher-end models (e.g., RTX A5000, A6000) support GPU virtualization in VMware or Citrix environments, allowing, for example, the power of one card to be shared among multiple virtual machines. This is an advanced use case in enterprises; the Precision 5820 in such a scenario could function as a small server hosting multiple virtual workstations. However, this functionality requires special NVIDIA licenses (RTX Virtual Workstation software). For an individual user, it is not very relevant, but it demonstrates the enterprise capabilities of these graphics cards.

Storage: Capacity Up to Tens of Terabytes, Fast SSDs, and RAID Support

Modern professional projects require not only performance, but also sufficient space for data and fast access. The Dell Precision 5820 excels with very flexible storage options. It supports a combination of traditional hard drives, SATA and NVMe SSDs, in various formats. According to official specifications, a total capacity of up to around 68 TB can be achieved, which includes a combination of multiple HDDs and SSDs simultaneously.

Internal bays and FlexBay: The chassis offers two modular front bays designated as FlexBay. Each of them can accommodate either one 3.5" drive, or up to two 2.5" drives/SSDs (with an adapter), or other modules. So in total, up to 4× 3.5" HDDs or 4× 2.5" drives in these positions alone. There is also a third top bay (5.25"), which can be fitted with an optical drive (DVD±RW), or another drive tray (e.g., Dell offers a module for an additional 1×3.5" or 2×2.5" in this position). This brings us to a maximum of 5× 3.5" positions + 2× 2.5" (in the top bay), or up to 6× 2.5", depending on the combination. The mentioned 60–68 TB capacity is achieved by, for example, installing five 12 TB 3.5" HDDs (60 TB) plus two 4 TB NVMe SSDs (8 TB).

NVMe SSD and hot-swap: The Precision 5820 supports ultra-high-speed NVMe SSDs in both M.2 and U.2 formats. If you have the chassis version with the so-called PCIe FlexBay backplane, you can install a module for two M.2 or one U.2 SSD in one of the front FlexBay positions, which are then accessible from the front as removable (hot-swap) units. This is a great feature for professionals – you can, for example, run your system from an NVMe SSD and easily swap it for another, or use removable NVMe drives for various sensitive data that you eject and store in a safe after completing a project. The two front slots support NVMe RAID 0/1 via Intel VROC (more on this below). In addition, the workstation has the option to install up to four NVMe M.2 SSDs on the Dell Ultra-Speed Drive Quad special PCIe card (an x16 card). This card holds 4 M.2 modules and can also configure them in RAID. In short, Dell has given users the freedom to configure storage as they see fit – whether you prefer several large slow drives for archiving or blazing-fast NVMe storage for video work, the Precision 5820 can handle it.

Integrated controller and RAID: On the motherboard there is an integrated Intel C422 SATA controller with 6 ports for SATA 6 Gb/s (plus two ports dedicated to optical drives). It supports RAID 0, 1, 5, 10 at the firmware level via Intel RSTe. In practice, this means you can combine, for example, two HDDs in a mirror (RAID1) for higher data security, or conversely stripe (RAID0) for greater speed (suitable for a scratch disk in video editing – two SSDs in RAID0 will double sequential speed). RAID5 and 10 are combinations of parity or mirroring for a compromise between capacity and resilience – typically you would choose RAID5 with three or more drives to protect data against the failure of one drive, or RAID10 (mirrored stripe) for a combination of performance and redundancy, with a minimum of four drives. In the Precision 5820, RAID arrays can be managed directly in the BIOS (Intel RST) or from the operating system via the Intel Rapid Storage tool. This is a software-hardware solution (so-called firmware RAID) that does not significantly burden the CPU and is perfectly sufficient for everyday use.

For more demanding users, Dell optionally offered dedicated HW controllers (e.g., Broadcom/LSI MegaRAID SAS cards). These allow connecting SAS drives (Serial Attached SCSI) and provide hardware caching, battery backup, etc. – but this is more relevant for servers. In a standard workstation configuration, the integrated controller suffices. Importantly, the Precision 5820 can do RAID even with NVMe SSDs thanks to Intel VROC (Virtual RAID on CPU) technology. This allows NVMe drives to be configured in RAID0/1/10 with the help of a key (license) in the BIOS. Imagine, for example, two ultra-fast NVMe SSDs in RAID0 – you achieve up to double throughput of around 6–7 GB/s, which can speed up work with 8K video or huge datasets.

Drive replacement and practical expandability: Inside the chassis, drives sit in tool-free trays – both 3.5" and 2.5" brackets have a snap-in mechanism, so you don’t need a screwdriver to install a new HDD/SSD. Simply open the side panel, pull out the tray, insert the drive, and slide it back in. The front FlexBay positions even allow hot-swap (replacement while running) for NVMe SSDs if configured as removable. All of this makes maintenance and expansion significantly easier – for example, when a project runs out of storage space, you can quickly add another drive without having to take the workstation offline for long.

What is RAID for? To summarize: RAID0 (stripe) – combines drives to increase speed and capacity, but without data protection (failure of one drive = loss of the array). RAID1 (mirror) – duplicates data across two drives; one can fail without data loss; used, for example, for the system drive for reliability. RAID5 – stores data with parity across 3 or more drives, tolerates the failure of 1 drive, and provides a combination of capacity and protection (popular in servers). RAID10 – combines mirroring and striping (e.g., 4 drives as 2 mirrored pairs that are striped) – fast and resilient, but half the usable capacity. Using RAID in the Precision 5820 is optional; if you don’t need a redundant solution, you can easily use drives independently. But for business deployment, it is nice to have at least the system drive in a mirror, or data in a mirror – it minimizes downtime in the event of a drive failure.

Chassis, Design, and Practical Build

Robust tower with smart features: At first glance, the Dell Precision 5820 Tower looks like a classic black computer case, but on closer inspection it reveals several practical design touches. Overall dimensions are approximately 418×176×518 mm (H×W×D) and weight is around 15–16 kg depending on the configuration. This indicates a quality steel-and-plastic construction. The workstation has integrated handles at the front top and rear, which make it easier to carry or slide under/out from a desk. These handles are a permanent part of the frame and can support the full weight – very useful when handling.

Tool-free access: The side panel is removable with a single lever (latch) on the top – simply pull it and the side panel releases. No screwdriver needed. Inside you will find a well-organized interior: for example, the aforementioned plastic air tunnel (Air shroud) covering the processor and RAM, which directs air from the front fan through the CPU heatsink and memory. It can be easily removed for access to the modules. All slot covers are also tool-free (lever mechanism), which speeds up card installation. Even the power supply is handled in an unconventional way – it is slide-out from the rear after releasing a latch, similar to servers. This means that replacing the power supply (for a more powerful one or in case of failure) does not require disassembling half the PC; the PSU slides out like a cassette.

Connectors and features: The Precision 5820 offers a wide range of ports directly on the chassis. On the front, you will find 2× USB 3.1 Gen1 Type-A and 2× USB-C 3.1 Gen1 (5 Gb/s), of which one Type-A port supports PowerShare (charging devices even when the PC is off) and one Type-C also supports Power Delivery for fast charging. A universal audio connector (combined for headphones/microphone) is included. The front also features an integrated SD memory card reader (UHS-II, Class 3) for photographers and video creators – very practical for quick media import. On the rear, the workstation has 6× USB 3.1 Gen1 Type-A (5 Gb/s), a classic serial port (COM) for connecting older devices (e.g., scientific instruments, CNC machines), two PS/2 ports for older keyboards/mice (appreciated in industry where specific keyboards are sometimes used), a gigabit Ethernet RJ-45 port, and audio inputs/outputs (Line-in / Line-out combined with microphone). These ports allow the Precision 5820 to integrate easily even into older environments where a serial line or PS/2 is needed – something regular consumer PCs no longer have.

Internal expansion slots: For cards, the motherboard offers a total of 5 PCIe slots: 2× PCIe 3.0 x16 (full 16 lanes from CPU), 1× PCIe 3.0 x16 (physical) wired as x8, 1× PCIe 3.0 x16 (physical) wired as x4, 1× PCIe 3.0 x16 (physical) wired as x1. It also contains one older PCI 32-bit slot for truly legacy cards (e.g., special sound cards or controllers from the past). This slot configuration is well above average – it allows installing not only two GPUs (which would go into the two full x16 slots), but also additional cards: e.g., a sound card in x1, a controller or accelerator card in x4/x8, etc. If you don’t need a second GPU, the x16 slot can be used for the aforementioned Quad M.2 SSD card or, for example, a high-speed network card (10 Gb Ethernet), etc. The Precision 5820 is therefore ready to accommodate non-standard expansions as needed for a specific workflow.

Cooling and noise: We have already outlined that the workstation has a well-thought-out cooling system. At the front there is a large fan that draws air in through the perforated front panel (which is fitted with a dust filter in a frame – it can be removed and cleaned, which we recommend doing from time to time). The airflow is directed through two main zones: one cools the CPU and RAM (under the shroud) and the other flows through the space with the GPU and drives. The power supply has its own small fan and draws air from the rear. Under normal office workload or light use, the Precision 5820 is very quiet – the multi-channel cooling and quality fan bearings do their job. Dell engineers specifically mention in their materials that they designed the workstation so the user would not be disturbed by noise even under high workload. Of course, “quiet” in the context of a workstation means the noise is dampened and of a more of a fan-hum character; if you put the CPU and GPU under full load, you will hear airflow, but there should be no unpleasant high-pitched tones or vibrations. Overall, the chassis design received positive reviews for practicality – for example, server magazine Develop3D praised the integration of front hot-swap slots and the robust construction that at the same time does not take up unnecessarily too much space (for a full-tower workstation, the 5820 is relatively compact).

Orientation and placement: The Precision 5820 is primarily a tower designed for vertical placement. It can be placed on the floor next to or under a desk, or on a desk (if you have enough room – it is, after all, a large device). The question may arise as to whether the case can be laid on its side (horizontally) or even rack-mounted. Laying it on its side is possible – there are no mechanical parts inside that would be harmed by this (except perhaps an optical drive, which in horizontal position would only work if its disc holder is used – which most of them have). However, keep in mind that if you lay the tower on its side, you should support or secure it so it does not roll and still has good air access. The rubber feet are only on the bottom, so on its side it would lie directly on metal – this is not ideal due to vibrations. It is better to use it standing upright.

Regarding rack mounting – Dell does offer rack versions of workstations (Rack 7000 series models, etc.), but the Precision 5820 Tower cannot officially be rack-mounted in a 19" rack (there is no kit for it). However, it roughly corresponds to about 5U in size and some users can place it in a universal shelf in a rack cabinet. If that is your intention, pay attention to cooling (the rack should have good airflow) and also to access to buttons and ports – the 5820 has the power button and USB on the front, which when slid into a rack should remain accessible. Overall, we recommend using the Precision 5820 as a classic desktop workstation; it is not a server with redundant power supplies or remote management like iDRAC (though it supports Intel AMT/vPro with Xeon, which allows remote access to the system for administrators). For 24/7 operation in a server room, a real server or rack workstation would be more appropriate, but the Precision can handle it too, just with the limitations mentioned above.

Practical Use Cases

Now let’s look at how the Dell Precision 5820 Tower performs in various areas of use – from professional applications to gaming, to AI experiments and server deployment. Thanks to its modular concept, this workstation can be adapted by people across industries: designers, engineers, creative professionals, AI developers, as well as gamers or server administrators.

CAD, 3D Modeling, and Visualization

In the field of CAD (Computer-Aided Design) and 3D modeling, the key combination is a powerful CPU and a professional GPU. The Precision 5820 in configurations with Xeon processors and Quadro/RTX graphics excels. For example, in Autodesk AutoCAD or Revit, you will appreciate the high processor clock speed (for fast model regenerations and geometry calculations in a single thread) and at the same time the stability of Quadro drivers (certification ensures correct rendering of technical drawings). Large ECC memory allows loading extensive building projects without swapping to disk. In SolidWorks or CATIA, graphics acceleration also plays a role – the RTX A4000/A5000 can accelerate rendering via OpenGL, and their drivers support, for example, realistic shadows and anti-aliasing directly in Shaded mode in the viewport, which facilitates work with complex assemblies. For rendering in CAD (e.g., photorealistic interior rendering), you can use either a strong CPU (if rendering via a CPU engine like Arnold CPU or Mental Ray) – where the 18 Xeon cores perform brilliantly – or GPU renderers (Iray, Octane, Redshift), where the RTX card performance comes into play. One RTX A5000 can render scenes even in 4K resolution in a few minutes, something a CPU would compute for hours. Moreover, as already mentioned, you can add a second GPU to the workstation for even faster rendering.

Animation and VFX: For animators and visual effects artists (3ds Max, Maya, Cinema4D, Blender), the Precision 5820 provides an excellent foundation. Multi-core CPU speeds up the simulation module (physics, particles) and final rendering when using CPU renderers (Arnold, 3ds Max Scanline, etc.). If you render with GPU renderers (Octane, Redshift, Cycles GPU), powerful NVIDIA RTX GPU(s) dramatically reduce render times. For example, Blender Cycles with OptiX acceleration on the RTX 3080 will render a complex scene several times faster than the CPU. ECC memory also ensures that during long animation sequences, frames will not be corrupted by a random error. This reliability is important – nobody wants to find out after 20 hours of rendering that one frame is corrupted.

VR/AR and simulation: The Precision 5820 is a “VR-Ready” workstation. This means that with a suitable graphics card (e.g., RTX A4000 or better), it meets the requirements for virtual reality – it can render at 90+ FPS on two high-resolution VR headset displays. Architects can thus walk through virtual buildings, car designers can view 3D models in VR, etc. Thanks to support for professional VR applications (Autodesk VRED, Enscape3D, Unity, Unreal Engine), the workstation is also suitable for VR/AR content developers. Regarding simulations, whether it is flow simulation (CFD), FEM computations (Finite Element Method, e.g., Ansys), or analytical tasks, you will appreciate maximum RAM and a powerful CPU. An 18-core Xeon can run multiple iterations of a computation in parallel, and with 256–512 GB RAM it can hold even very detailed models (millions of elements in FEM analysis). The workstation is also certified for software like Siemens NX, Dassault Abaqus, etc., so you know everything will run correctly and quickly.

Video Editing, Graphics, and Post-Production

For video editing and working in Adobe Creative Cloud, the Precision 5820 is literally purpose-built. The combination of multiple cores and a powerful GPU benefits, for example, Adobe Premiere Pro (which can accelerate effects via GPU CUDA/OpenCL) and After Effects (where preview calculation benefits from both CPU and GPU). With 32 GB RAM (in our builds), you can comfortably edit 4K footage; if you were working with 8K RAW video, it is possible to expand memory to 64–128 GB for smoother operation. What is crucial – NVIDIA RTX graphics cards support CUDA technology, which Adobe uses for many operations (scaling, de-noise, color grading, etc.). A card like the RTX A4000 can accelerate even several 4K streams simultaneously in real time. The workstation’s disk options (NVMe RAID0 scratch disk) ensure that working with many hours of footage will not be slowed down by storage.

In applications such as Photoshop, Illustrator, etc., the hardware demands are not as extreme, but even here the rule applies that more RAM allows keeping huge files open (e.g., a poster in Photoshop with dozens of layers), and the GPU accelerates many filters and operations. Dell Precision Optimizer monitoring can even automatically adjust performance profiles for a given application – for example, clock the CPU up more (Turbo) when it detects that Photoshop is only using one core, so that operation completes as fast as possible.

For post-production studios, the ability to output to multiple high-resolution monitors is also important. Cards like the RTX A5000 support up to four 5K monitors simultaneously, or with adapters even 8K displays. This allows having, for example, one reference monitor for video preview, a second for the timeline, a third for tools – all smooth. Furthermore, if you do 3D graphics and compositing (Nuke, Fusion), a powerful GPU with 24 GB VRAM (RTX A5000) allows rendering demanding 3D scenes directly in compositing software, applying complex particle effects, etc., without the need for proxy files.

Gaming on the Precision 5820

Although the Dell Precision is primarily a professional tool, the question cannot be ignored: Can you game on it? The answer is a clear yes – the hardware of this workstation will easily outperform most typical “gaming PC” specifications. It depends, however, on the installed graphics card. In the configuration with NVIDIA RTX 3080, it is essentially a high-end gaming machine: 10 GB VRAM and the raw Ampere GPU power can handle any modern game at ultra settings in 1440p and even 4K. For example, in the demanding game Cyberpunk 2077, you will achieve around 60+ fps with the RTX 3080 at 4K resolution on high settings (with DLSS upscaling even more) – which is sufficient for smooth gaming. E-sport titles like CS:GO, Valorant, and Fortnite will run at hundreds of fps, so if you connect a high-refresh-rate monitor, you get the full benefit.

Configurations with RTX A4000 or A5000 are also very capable. The RTX A4000 has performance roughly like the GeForce RTX 3070, but with 16 GB VRAM. In games, this means that even if some title does not fully utilize professional drivers, the raw performance and sufficient memory will ensure smooth operation. For example, Microsoft Flight Simulator 2020, which is demanding on both CPU and GPU, would run excellently on the Precision 5820 (Xeon W-2295 + RTX A5000) – 18 cores help with world computation and 24 GB VRAM holds ultra-detail textures, so at 4K resolution you could achieve around 50–60 fps on ultra settings, which is a great result for this simulation. Other demanding games like Red Dead Redemption 2 or Assassin’s Creed Valhalla would be handled by such a setup at 1440p/ultra with headroom (80+ fps).

With the AMD Radeon Pro W5700, gaming performance is comparable to the Radeon RX 5700 XT, so also quite good. Modern titles at 1080p will run around 100 fps on high settings, 1440p around 60 fps. Radeon Pro drivers are not primarily tuned for gaming, but they generally work. Some games may not identify the card as “supported” (because they see it as a professional card), but this has no effect on functionality – it just means the driver may occasionally not include the latest optimizations, so in practice performance may be a few percent lower than the equivalent gaming version of the card. The difference is usually small.

Compatibility and features: The workstation runs standard Windows 10/11 Pro, so installing games via Steam, Origin, etc. is normal. Audio output is handled by an integrated Realtek chip (HD Audio), which has a decent signal-to-noise ratio – perfectly sufficient for gaming (and the Precision has plenty of USB ports, so you can connect any gaming peripheral). The only limitation may be RGB lighting – this is not a “gaming PC” with a transparent side panel and LED strips; the design is functional and austere. But that doesn’t bother most gamers if raw performance is the priority. There is no internal lighting. The workstation’s BIOS is also not intended for overclocking – with Xeon this is not possible anyway, and although the C422 chipset supports Core X CPUs too, overclocking is limited. But again, this does not hinder the Precision’s goals – stability takes priority over extreme OC.

In conclusion on gaming: you can comfortably use the Precision 5820 as a gaming machine after work – in terms of performance, it will definitely not hold you back. Just keep in mind that professional cards (Quadro/RTX A) may have weaker support for technologies like G-Sync (it mostly works if the connected monitor has G-Sync) and also their drivers prioritize stability – this means, for example, that extreme frametimes may be slightly “smoothed out” (which is paradoxically not bad). Some users report that when gaming on Quadro cards, latency is a few milliseconds higher vs. GeForce, but this is barely noticeable without measurement. In any case, for single-player and general gaming, it is negligible.

Artificial Intelligence and Machine Learning on the Precision 5820

The field of AI and machine learning is becoming increasingly important for workstations. The Dell Precision 5820 can serve as a powerful AI workstation for developing and experimenting with models. Configurations with powerful GPUs (RTX A5000, RTX 3080, etc.) are particularly attractive in this regard. What specifically can be run on this workstation?

Training neural networks: Thanks to support for frameworks like TensorFlow, PyTorch, or Jupyter environments, you can turn the Precision 5820 into a personal “mini supercomputer”. For example, with the GPU RTX A5000 (24 GB VRAM, 230 W), you can train advanced deep learning models – image classifiers, object detection, generative models (GANs), etc. 24 GB of card memory allows processing relatively large batch sizes or training models with tens of millions of parameters. If that is not enough, in dual-GPU A5000 mode connected via NVLink, you get 48 GB of shared model memory, which is already sufficient, for example, to train some language models with billions of parameters in mixed precision.

For illustration: the popular Transformer model with ~1.5 billion parameters (e.g., GPT-2) would theoretically fit into ~12 GB of GPU memory during 16-bit training, so the A5000 could handle it – though it would take time. But if you want to experiment with the architecture, tune hyperparameters, etc., there is a huge advantage in having such power locally without having to do everything on remote clouds. Another example is Stable Diffusion (AI image generation) – a model with ~4 GB weights runs excellently on a GPU like the RTX 3080; generating one high-quality image can take just a few seconds. This means the Precision 5820 can be used as an AI content generator – whether for prototyping AI videos (models generating short videos exist, though still in a research phase) or for image stylization.

Running language models (ChatGPT-like): ChatGPT itself is a service running on enormous clusters, but there are open-source language models (GPT-J, GPT-NeoX, LLaMA, Bloom, and others) that you can run locally on a smaller scale. For example, the LLaMA-13B model (13 billion parameters) fits into approximately 24 GB VRAM in 16-bit mode – so on a single RTX A5000, it would need a slight reduction in precision or use of techniques like 8-bit quantization, and then it could run entirely. Two connected A5000s with NVLink (48 GB) could handle it comfortably without modifications. This means that on the Precision 5820 you can run a conversational model similar to (though smaller than) ChatGPT and experiment with it. Of course, GPT-3 (175B) or GPT-4 are out of reach – they would need thousands of GB of memory – but models up to ~20B parameters are within the reach of this workstation. This is attractive for example for researchers or AI enthusiasts who want to try fine-tuning a model on their own data locally (so-called LoRA adaptation can be done even on a 24 GB GPU). So yes, a ChatGPT-style language model in a limited version can be run on the Precision 5820. The four-core or eighteen-core Xeon also provides sufficient performance for the parts of tasks that run on the CPU (data preparation, pre-processing, etc.).

Data science and computation: Besides training deep learning models, the workstation can be used for conventional machine learning (scikit-learn, pandas, R, etc.) on large datasets. For example, analyzing data with hundreds of millions of records – here 128+ GB RAM is useful so the dataset fits into memory. Disk I/O also plays a role: NVMe SSD in RAID0 will be able to load data at several GB/s, so even very large CSVs or databases load quickly. If you work with Python and Jupyter notebooks, you will appreciate the quiet operation of the workstation during coding, and full power when you run computations. Unlike cloud instances, you have everything offline with you, which is an advantage for sensitive data.

Server Deployment and Virtualization

Last but not least, the Precision 5820 can be mentioned as a candidate for the role of a smaller server or workstation server. It is equipped with server technologies such as ECC memory, a reliable power supply, cooling dimensioned for sustained load, and a Xeon CPU that is practically identical to those in rack servers (just for 1 socket). Some companies use tower workstations as render farm nodes or for hosting application servers, or as a hybrid – during the day a graphic designer works on it, at night it computes batch jobs.

Operating systems: The Precision 5820 officially supports, in addition to Windows 10/11 Pro, also Windows Server OS (2016, 2019, and the newer 2022) – drivers are compatible, as the Xeon + C422 chipset hardware is close to servers. Various Linux distributions also run without issues – Dell even directly offers variants with Ubuntu or Red Hat Linux. So if you want to turn the workstation into a Linux server, nothing stands in the way. Many AI developers prefer Linux due to better support for certain libraries – with the Precision 5820 they can choose the OS as they prefer. When installing Linux, you will appreciate that Dell uses standard components, so, for example, NVIDIA drivers for Linux work with both Quadro and GeForce cards immediately, the Intel network card is supported out-of-the-box, RAID can be handled either via BIOS (Intel RST) or with software mdadm, etc.

Virtualization: With an 18-core Xeon and large RAM, using it to run several virtual machines is a natural fit. Intel VT-x and VT-d technologies are supported, so you can use hypervisors like VMware Workstation, VirtualBox, Hyper-V, or even full ESXi or Proxmox. The workstation can host, for example, 3–4 VMs for developing/testing various environments. You can also utilize PCI passthrough – with two GPUs installed, you can dedicate one to a VM (e.g., for a virtual workstation in the cloud). As already mentioned, RTX A5000/A6000 cards support Nvidia vGPU solution for professional GPU virtualization, which would allow splitting graphics power across multiple VMs (but this requires licenses and is typically used in larger servers). Nevertheless, even without this, the Precision can, for example, run a virtual Windows Server + a virtual Linux server + a NAS VM on one machine – for a small company, this could serve as a central server solution.

Reliability and management: In server operation, reliability is key. ECC memory, RMT Pro technology, quality capacitors on the board, and the generally precise workmanship give confidence that the workstation can run 24/7. The fans are two larger ones (plus the GPU fans), but they are industrial-grade models with long service life. It is recommended in such a case to have the workstation in a climate-controlled space and on a UPS (backup power supply) to protect against power outages. Regarding remote management – the Precision 5820 can have Intel AMT / vPro enabled (with Xeon W, vPro is supported as an option). If active and configured in the BIOS, the workstation can be managed remotely, including features such as power on, power off, and console access via network (similar to iDRAC in servers, but using the integrated NIC and requiring the appropriate console software on the client). This is appreciated by administrators if the Precision is running in a server room. Of course, standard remote access is also possible via software (RDP, VNC, SSH to Linux, etc.).

Overall, it can be said that the Precision 5820 can comfortably take on the role of a smaller server, compute node, or corporate storage. Unlike classic servers, it has the advantage of being quieter and can even stand in an office. In terms of expandability, it is not far from a “real” server – perhaps only a redundant power supply (there is only one 950 W here) and multiple sockets. For many purposes, however, it is sufficient, and thanks to its versatility it can serve engineers during the day and compute batch jobs at night, increasing the return on the investment.

Conclusion: A Versatile Workstation Ready for the Future

Dell Precision 5820 Tower is without exaggeration one of the most versatile workstations of its generation. In this comprehensive article, we have broken down its strengths in the finest detail – from powerful multi-core Xeon processors, through enormous ECC memory capacity and flexible storage, to top-end graphics cards and their combination options. We have answered a number of practical questions: can it support two GPUs (yes, designed for 2× 300 W cards), can you game on it (definitely, with the performance of a high-end PC), what professional applications does it support (thanks to ISV certifications, essentially all common CAD/DCC applications), what technologies like ECC memory or RAID mean and why they are important (data protection, reliability, disk performance) – and much more.

The Precision 5820 is designed to provide maximum performance and stability for creative and technical disciplines. Whether you are a designer who needs to test complex assemblies and simulations, an animator rendering cinematic shots, a data scientist training AI models, or “just” an enthusiast who wants a powerful no-compromise home system – this workstation will adapt to you. With eight DIMM slots, five drive bays, and a range of PCIe slots, it is highly expandable and customizable for future needs as well. Moreover, thanks to its modular design and quality components, its servicing and upgrades are a breeze – you can extend the system’s lifespan by generations by replacing key parts, rather than having to buy a new machine.

Customers from both businesses and individual users also appreciate its quiet operation and design – the Precision 5820 can sit unnoticed under a desk without disturbing anyone, yet it hides “monstrous” power within. Its practical touches such as front drive access, handles, and tool-free design save time during daily use or maintenance. It is no wonder then that this workstation can be found in many professional studios, workshops, and laboratories.

In conclusion, the Dell Precision 5820 Tower is an investment that pays off. It will provide you with a reliable tool for realizing your projects, no matter how demanding they are. In our e-shop ImportPC.cz, we offer it in several configurations that you can further customize to suit your needs. We believe that this comprehensive guide has answered all your questions and will help you decide whether the Precision 5820 is the right choice for your needs. If you still have further questions, do not hesitate to contact us – as specialists in Dell workstations, we are happy to advise.

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