NVIDIA Tesla K20c vs AMD Radeon Pro W6400

Price now 398$
Games supported 39%
NVIDIA Tesla K20c
NVIDIA Tesla K20c
  • Interface PCIe 2.0 x16
  • Core clock speed 706 MHz
  • Max video memory 5 GB
  • Memory type GDDR5
  • Memory clock speed 5200 MHz
  • Maximum resolution
AMD Radeon Pro W6400
Radeon Pro W6400
  • Interface PCIe 4.0 x4
  • Core clock speed
  • Max video memory 4 GB
  • Memory type GDDR6
  • Memory clock speed 14 Gbps
  • Maximum resolution
Price now 256$
Games supported 83%

General info

Comparison of graphics card architecture, market segment, value for money and other general parameters.

Place in performance ratingnot rated230
Value for moneyno data22.27
ArchitectureKepler (2012−2018)RDNA 2.0 (2020−2022)
GPU code nameGK110Navi 24
Market segmentWorkstationWorkstation
Release date12 November 2012 (10 years ago)19 January 2022 (less than a year ago)
Launch price (MSRP)$3,199 no data
Current price$398 (0.1x MSRP)$256
Value for money

To calculate the index we compare the characteristics of graphics cards against their prices.

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Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores2496768
Core clock speed706 MHzno data
Boost clock speedno data2331 MHz
Number of transistors7,080 million5,400 million
Manufacturing process technology28 nm6 nm
Thermal design power (TDP)225 Watt50 Watt
Texture fill rate146.8111.9
Floating-point performance3,524 gflopsno data

Compatibility, dimensions and requirements

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 2.0 x16PCIe 4.0 x4
Length267 mmno data
Supplementary power connectors1x 6-pin + 1x 8-pinNone


Parameters of memory installed: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated VRAM and use a shared part of system RAM.

Memory typeGDDR5GDDR6
Maximum RAM amount5 GB4 GB
Memory bus width320 Bit64 Bit
Memory clock speed5200 MHz14 GB/s
Memory bandwidth208.0 GB/s112.0 GB/s

Video outputs and ports

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display ConnectorsNo outputs2x DisplayPort 1.4a

API support

APIs supported, including particular versions of those APIs.

DirectX12 (11_0)12 Ultimate (12_2)
Shader Model5.16.6
CUDA3.5no data

Mining hashrates

Cryptocurrency mining performance of Tesla K20c and Radeon Pro W6400. Usually measured in megahashes per second.

Bitcoin / BTC (SHA256) 179 Mh/s no data

Advantages and disadvantages

Recency 12 November 2012 19 January 2022
Memory bus width 320 64
Pipelines / CUDA cores 2496 768
Memory bandwidth 208 112
Chip lithography 28 nm 6 nm
Thermal design power (TDP) 225 Watt 50 Watt

Technical City couldn't decide between

NVIDIA Tesla K20c
NVIDIA Tesla K20c


AMD Radeon Pro W6400
AMD Radeon Pro W6400

We've got no test results to judge.

Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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Competitors of Tesla K20c by AMD

It seems that there's no AMD equivalent for Tesla K20c. The nearest candidate is Radeon Pro W6400, however, it's 0% faster and higher by 0 positions in our rating.

AMD Radeon Pro W6400 Radeon Pro W6400

Competitors of Radeon Pro W6400 by NVIDIA

We believe that the nearest equivalent to Radeon Pro W6400 from NVIDIA is Quadro M4000, which is slower by 3% and lower by 5 positions in our rating.

NVIDIA Quadro M4000 Quadro M4000

Here are some closest NVIDIA rivals to Radeon Pro W6400:

Similar GPU comparisons

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User rating

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

5 4 ratings

Rate NVIDIA Tesla K20c on a scale of 1 to 5:

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4.3 12 ratings

Rate AMD Radeon Pro W6400 on a scale of 1 to 5:

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Questions and comments

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