NVIDIA Tesla K20c: specs and benchmarks

NVIDIA Tesla K20c


NVIDIA started Tesla K20c sales 12 November 2012 at a recommended price of $3,199. 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 21.58 percent of a leader's which is NVIDIA GeForce GTX 1080 SLI Mobile.

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)
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 (Radeon Pro Duo)
Core clock speed
706 MHz
of 1620 (Quadro RTX 5000)
Transistor count
7,080 million
of 21100
Manufacturing process technology
28 nm
of 7
Power consumption (TDP)
225 Watt
of 900 (Tesla S2050)
Texture fill rate
146.8 GTexel / s
Floating-point performance
3,524 gflops
of 16384 (Radeon Pro Duo)

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


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
Memory bus width
320 Bit
of 8192 (Radeon Pro Duo)
Memory clock speed
5200 MHz
of 14000
Memory bandwidth
208.0 GB / s
of 1024 (Radeon Pro Duo)

Video outputs and ports

Types and number of video connectors present on Tesla K20c.
Display Connectors
No outputs

API support

APIs supported by Tesla K20c, sometimes including their particular versions.
12.0 (11_0)

Benchmark 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 hashrates

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

Game benchmarks

Let's see how good Tesla K20c is for gaming. Particular gaming benchmark results are measured in FPS. Comparisons with system requirements are included, but remember that sometimes official requirements may reflect real performance inaccurately.

Relative perfomance

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

AMD equivalent

We believe that the nearest equivalent to Tesla K20c from AMD is FirePro S7000, which is nearly equal in speed and higher by 26 positions in our rating.

Advices and comments

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