Radeon Pro W6400 vs Tesla K20X
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | 309 |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | no data | 31.02 |
| Architecture | Kepler (2012−2018) | RDNA 2.0 (2020−2025) |
| GPU code name | GK110 | Navi 24 |
| Market segment | Workstation | Workstation |
| Release date | 12 November 2012 (13 years ago) | 19 January 2022 (4 years ago) |
| Launch price (MSRP) | $7,699 | no data |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 2688 | 768 |
| Core clock speed | 732 MHz | 2331 MHz |
| Boost clock speed | no data | 2331 MHz |
| Number of transistors | 7,080 million | 5,400 million |
| Manufacturing process technology | 28 nm | 6 nm |
| Power consumption (TDP) | 235 Watt | 50 Watt |
| Texture fill rate | 164.0 | 111.9 |
| Floating-point processing power | 3.935 TFLOPS | 3.58 TFLOPS |
| ROPs | 48 | 32 |
| TMUs | 224 | 48 |
| Ray Tracing Cores | no data | 12 |
| L0 Cache | no data | 192 KB |
| L1 Cache | 224 KB | 256 KB |
| L2 Cache | 1536 KB | 1024 KB |
| L3 Cache | no data | 8 MB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 3.0 x16 | PCIe 4.0 x4 |
| Length | 267 mm | no data |
| Width | 2-slot | 1-slot |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin | None |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR5 | GDDR6 |
| Maximum RAM amount | 6 GB | 4 GB |
| Memory bus width | 384 Bit | 64 Bit |
| Memory clock speed | 1300 MHz | 1750 MHz |
| Memory bandwidth | 249.6 GB/s | 112.0 GB/s |
| Resizable BAR | - | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 2x DisplayPort 1.4a |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.6 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.2 |
| Vulkan | 1.1.126 | 1.3 |
| CUDA | 3.5 | - |
Pros & cons summary
| Recency | 12 November 2012 | 19 January 2022 |
| Maximum RAM amount | 6 GB | 4 GB |
| Chip lithography | 28 nm | 6 nm |
| Power consumption (TDP) | 235 Watt | 50 Watt |
Tesla K20X has a 50% higher maximum VRAM amount.
Pro W6400, on the other hand, has an age advantage of 9 years, a 367% more advanced lithography process, and 370% lower power consumption.
We couldn't decide between Tesla K20X and Radeon Pro W6400. We've got no test results to judge.
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