Performance to price ratio. The higher, the better.
Tesla K20c vs Tesla K80
Aggregated performance score
Tesla K80
2014
12 GB GDDR5
16.03
+80.1%
Tesla K20c
2012
5 GB GDDR5
8.90
Tesla K80 outperforms Tesla K20c by 80% based on our aggregated benchmark results.
General info
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 307 | 454 |
| Place by popularity | not in top-100 | not in top-100 |
| Value for money | 12.53 | 1.43 |
| Architecture | Kepler 2.0 (2013−2015) | Kepler (2012−2018) |
| GPU code name | GK210 | GK110 |
| Market segment | Workstation | Workstation |
| Release date | 17 November 2014 (9 years old) | 12 November 2012 (11 years old) |
| Launch price (MSRP) | no data | $3,199 |
| Current price | $83 | $591 (0.2x MSRP) |
Value for money
Tesla K80 has 776% better value for money than Tesla K20c.
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 cores | 2496 | 2496 |
| Core clock speed | 562 MHz | 706 MHz |
| Boost clock speed | 824 MHz | no data |
| Number of transistors | 7,100 million | 7,080 million |
| Manufacturing process technology | 28 nm | 28 nm |
| Power consumption (TDP) | 300 Watt | 225 Watt |
| Texture fill rate | 171.4 | 146.8 |
| Floating-point performance | no data | 3,524 gflops |
Size and compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Length | 267 mm | 267 mm |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 8-pin | 1x 6-pin + 1x 8-pin |
Memory
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR5 | GDDR5 |
| Maximum RAM amount | 12 GB | 5 GB |
| Memory bus width | 384 Bit | 320 Bit |
| Memory clock speed | 5012 MHz | 5200 MHz |
| Memory bandwidth | 240.6 GB/s | 208.0 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 Connectors | No outputs | No outputs |
API support
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 (11_0) |
| Shader Model | 5.1 | 5.1 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.1.126 | 1.1.126 |
| CUDA | 3.7 | 3.5 |
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Advantages and disadvantages
| Performance score | 16.03 | 8.90 |
| Recency | 17 November 2014 | 12 November 2012 |
| Maximum RAM amount | 12 GB | 5 GB |
| Power consumption (TDP) | 300 Watt | 225 Watt |
The Tesla K80 is our recommended choice as it beats the Tesla K20c in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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