Tesla K20c: specs and benchmarks
Aggregate performance score
Tesla K20c provides poor gaming and benchmark performance at 8.95% of a leader's which is GeForce RTX 4090.
Summary
NVIDIA started Tesla K20c sales 12 November 2012 at a recommended price of $3,199 . This is a Kepler architecture desktop card based on 28 nm manufacturing process and primarily aimed at designers. 5 GB of GDDR5 memory clocked at 1.3 GHz are supplied, and together with 320 Bit memory interface this creates a bandwidth of 208.0 GB/s.
Compatibility-wise, this is a dual-slot graphics 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.
Primary details
Some basic facts about Tesla K20c: architecture, market segment, release date etc.
| Place in the ranking | 490 | |
| Place by popularity | not in top-100 | |
| Cost-effectiveness evaluation | 0.37 | |
| Power efficiency | 2.73 | of 100.00 (Radeon 890M) |
| Architecture | Kepler (2012−2018) | |
| GPU code name | GK110 | |
| Market segment | Workstation | |
| Release date | 12 November 2012 (12 years ago) | |
| Launch price (MSRP) | $3,199 | of 14,999 (Quadro Plex 7000) |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
Tesla K20c's specs such as number of shaders, GPU base 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.
| Pipelines / CUDA cores | 2496 | of 21760 (GeForce RTX 5090) |
| Core clock speed | 706 MHz | of 2670 MHz (Arc B580) |
| Number of transistors | 7,080 million | of 208,000 million (B200 SXM 192 GB) |
| Manufacturing process technology | 28 nm | of 3 nm (Arc Graphics 140V) |
| Power consumption (TDP) | 225 Watt | of 2400 Watt (Data Center GPU Max Subsystem) |
| Texture fill rate | 146.8 | of 2,554 (Radeon Instinct MI300X) |
| Floating-point processing power | 3.524 TFLOPS | of 109.7 (GeForce RTX 5090) |
| ROPs | 40 | of 192 (Radeon RX 7900 XTX) |
| TMUs | 208 | of 1280 (Data Center GPU Max NEXT) |
Form factor & compatibility
This section provides details about the physical dimensions of Tesla K20c and its compatibility with other computer components. This information is useful when selecting a computer configuration or upgrading an existing one. For desktop graphics cards, it includes details about the interface and bus (for motherboard compatibility) and additional power connectors (for power supply compatibility).
| Interface | PCIe 2.0 x16 | |
| Length | 267 mm | |
| Width | 2-slot | |
| Supplementary power connectors | 1x 6-pin + 1x 8-pin |
VRAM capacity and type
Parameters of memory installed on Tesla K20c: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors have no dedicated memory and use a shared part of system RAM instead.
| Memory type | GDDR5 | |
| Maximum RAM amount | 5 GB | of 294912 (Radeon Instinct MI325X) |
| Memory bus width | 320 Bit | of 8192 Bit (Radeon Instinct MI250X) |
| Memory clock speed | 1300 MHz | of 20000 (RTX 5000 Ada Generation Mobile) |
| Memory bandwidth | 208.0 GB/s | of 5,171 GB/s (Radeon Instinct MI300X) |
Connectivity and outputs
Types and number of video connectors present on Tesla K20c. As a rule, this section is relevant only for desktop reference graphics cards, since for notebook ones the availability of certain video outputs depends on the laptop model, while non-reference desktop models can (though not necessarily will) bear a different set of video ports.
| Display Connectors | No outputs |
API compatibility
APIs supported by Tesla K20c, sometimes including their particular versions.
| DirectX | 12 (11_0) | |
| Shader Model | 5.1 | |
| OpenGL | 4.6 | |
| OpenCL | 1.2 | |
| Vulkan | 1.1.126 | |
| CUDA | 3.5 |
Benchmark performance
Synthetic benchmark performance of Tesla K20c. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Octane Render OctaneBench
This is a special benchmark measuring graphics card performance in OctaneRender, which is a realistic GPU rendering engine by OTOY Inc., available either as a standalone program, or as a plugin for 3DS Max, Cinema 4D and many other apps. It renders four different static scenes, then compares render times with a reference GPU which is currently GeForce GTX 980. This benchmark has nothing to do with gaming and is aimed at professional 3D graphics artists.
Send your test results of Tesla K20c.
AMD equivalent
According to our data, the closest AMD alternative to Tesla K20c is Radeon Pro WX 4100, which is faster by 5% and higher by 19 positions in our ranking.
Here are some closest AMD rivals to Tesla K20c:
Similar GPUs
Here is our recommendation of several graphics cards that are more or less close in performance to the one reviewed.
Recommended processors
These processors are most commonly used with Tesla K20c according to our statistics.
