Tesla K80 vs Tesla K20c

Price now 97$
Games supported 83%
NVIDIA Tesla K80
NVIDIA Tesla K80
  • Interface PCIe 3.0 x16
  • Core clock speed 562 MHz
  • Max video memory 12 GB
  • Memory type GDDR5
  • Memory clock speed 5012 MHz
  • Maximum resolution
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
Price now 398$
Games supported 39%

General info

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

Place in performance rating223not rated
Value for money12.53no data
ArchitectureKepler 2.0 (2013−2015)Kepler (2012−2018)
GPU code nameGK210GK110
Market segmentWorkstationWorkstation
Release date17 November 2014 (8 years ago)12 November 2012 (10 years ago)
Launch price (MSRP)no data$3,199
Current price$97 $398 (0.1x MSRP)
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 cores24962496
Core clock speed562 MHz706 MHz
Boost clock speed824 MHzno data
Number of transistors7,100 million7,080 million
Manufacturing process technology28 nm28 nm
Thermal design power (TDP)300 Watt225 Watt
Texture fill rate171.4146.8
Floating-point performanceno data3,524 gflops

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 3.0 x16PCIe 2.0 x16
Length267 mm267 mm
Supplementary power connectors1x 8-pin1x 6-pin + 1x 8-pin


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 typeGDDR5GDDR5
Maximum RAM amount12 GB5 GB
Memory bus width384 Bit320 Bit
Memory clock speed5012 MHz5200 MHz
Memory bandwidth240.6 GB/s208.0 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 outputsNo outputs

API support

APIs supported, including particular versions of those APIs.

DirectX12 (11_1)12 (11_0)
Shader Model5.15.1

Mining hashrates

Cryptocurrency mining performance of Tesla K80 and Tesla K20c. Usually measured in megahashes per second.

Bitcoin / BTC (SHA256) 216 Mh/s 179 Mh/s

Advantages and disadvantages

Recency 17 November 2014 12 November 2012
Memory bus width 384 320
Memory bandwidth 240.6 208
Thermal design power (TDP) 300 Watt 225 Watt

Technical City couldn't decide between

NVIDIA Tesla K80
NVIDIA Tesla K80


NVIDIA Tesla K20c
NVIDIA Tesla K20c

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 K80 by AMD

We believe that the nearest equivalent to Tesla K80 from AMD is Radeon Pro W6400.

AMD Radeon Pro W6400 Radeon Pro W6400

Here are some closest AMD rivals to Tesla K80:

Competitors of Tesla K20c by AMD

We believe that the nearest equivalent to Tesla K20c from AMD is Radeon Pro W6400.

AMD Radeon Pro W6400 Radeon Pro W6400

Similar GPU comparisons

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

User rating

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

3.7 106 ratings

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5 4 ratings

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Questions and comments

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