Radeon Pro V620 vs Tesla K20X

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the rankingnot rated136
Place by popularitynot in top-100not in top-100
Power efficiencyno data9.55
ArchitectureKepler (2012−2018)RDNA 2.0 (2020−2025)
GPU code nameGK110Navi 21
Market segmentWorkstationWorkstation
Release date12 November 2012 (13 years ago)4 November 2021 (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 cores26884608
Core clock speed732 MHz1825 MHz
Boost clock speedno data2200 MHz
Number of transistors7,080 million26,800 million
Manufacturing process technology28 nm7 nm
Power consumption (TDP)235 Watt300 Watt
Texture fill rate164.0633.6
Floating-point processing power3.935 TFLOPS20.28 TFLOPS
ROPs48128
TMUs224288
Ray Tracing Coresno data72
L0 Cacheno data1.1 MB
L1 Cache224 KB1 MB
L2 Cache1536 KB4 MB
L3 Cacheno data128 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).

InterfacePCIe 3.0 x16PCIe 4.0 x16
Length267 mm267 mm
Width2-slot2-slot
Supplementary power connectors1x 6-pin + 1x 8-pin2x 8-pin

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 typeGDDR5GDDR6
Maximum RAM amount6 GB32 GB
Memory bus width384 Bit256 Bit
Memory clock speed1300 MHz2000 MHz
Memory bandwidth249.6 GB/s512.0 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 ConnectorsNo outputsNo outputs

API and SDK support

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 (11_0)12 Ultimate (12_2)
Shader Model5.16.5
OpenGL4.64.6
OpenCL1.22.1
Vulkan1.1.1261.2
CUDA3.5-

Pros & cons summary


Recency 12 November 2012 4 November 2021
Maximum RAM amount 6 GB 32 GB
Chip lithography 28 nm 7 nm
Power consumption (TDP) 235 Watt 300 Watt

Tesla K20X has 27.7% lower power consumption.

Pro V620, on the other hand, has an age advantage of 8 years, a 433.3% higher maximum VRAM amount, and a 300% more advanced lithography process.

We couldn't decide between Tesla K20X and Radeon Pro V620. We've got no test results to judge.

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NVIDIA Tesla K20X
Tesla K20X
AMD Radeon Pro V620
Radeon Pro V620

Other comparisons

We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.

Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


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