NVIDIA Tesla K20c: specs and benchmarks

NVIDIA Tesla K20c


NVIDIA started Tesla K20c sales 12 November 2012 at a recommended price of 3,199 USD. This is Kepler architecture desktop card based on 28 nm manufacturing process and primarily aimed at designers. 5 GB of GDDR5 memory clocked at 5.2 GHz are supplied, and together with 320 Bit memory interface this creates a bandwidth of 208.0 GB/s.

Compatibility-wise, this is 2-slot card attached via PCIe 2.0 x16 interface. Its manufacturer default version has a length of 267 mm. One 6-pin and one 8-pin connectors are required, and power consumption is at 225 Watt.

It provides poor gaming and benchmark performance at 21.21 percent of a leader's which is AMD Radeon R9 390 X2.

General info

Of Tesla K20c's architecture, market type and release date.
Place in performance rating
Code name
Release date
12 November 2012
Launch price (MSRP)
3,199 USD
of 14999 (Quadro Plex 7000)

Technical specs

Tesla K20c's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Tesla K20c's performance, but for precise assessment you have to consider its benchmark and gaming test results.
of 8192 (FirePro S9300 X2)
Core clock speed
706 MHz
Transistor count
7,080 million
of 21100
Manufacturing process technology
28 nm
of 12
Power consumption (TDP)
225 Watt
of 900 (Tesla S2050)
Texture fill rate
of 20896 (Tesla M10)
Floating-point performance
3,524 gflops

Compatibility, dimensions and requirements

Information on Tesla K20c's 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).
PCIe 2.0 x16
267 mm
Supplementary power connectors
1x 6-pin + 1x 8-pin

Memory specs

Parameters of memory installed on Tesla K20c: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Memory type
Maximum RAM amount
5 GB
of 32 (Tesla M10)
Memory bus width
320 Bit
of 8192 (FirePro S9300 X2)
Memory clock speed
5200 MHz
Memory bandwidth
208.0 GB/s
of 11404 (GRID K1)


Technological solutions and APIs supported by Tesla K20c. You'll probably need this information if you need some particular technology for your purposes.

Video card benchmarks performance

Non-gaming benchmarks performance of Tesla K20c. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
Octane Render OctaneBench

Mining hashrate

Cryptocurrency mining performance of Tesla K20c. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
179 Mh/s

Game benchmarks (in FPS)

Let's see how good Tesla K20c is for gaming. Particular gaming benchmark results are measured in FPS, while overall gaming performance is a number in 0-100 range, and the older the game, the less impact it has on the overall grade.
Overall gaming performance

Relative perfomance

Overall Tesla K20c performance compared to its nearest competitors. All GPU types participate.

AMD equivalent

It seems that there's no AMD equivalent for Tesla K20c. The nearest candidate is FirePro W4100, however, it's 75% slower and lower by 324 positions in our rating.

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Advices and comments

Here you can ask a question about Tesla K20c, agree or disagree with our judgements, or report an error or mismatch.