Tesla K20c vs Tesla K80
Aggregate performance score
We've compared Tesla K80 and Tesla K20c, covering specs and all relevant benchmarks.
Tesla K80 outperforms Tesla K20c by an impressive 70% based on our aggregate benchmark results.
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 351 | 490 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.37 |
| Power efficiency | 3.47 | 2.72 |
| Architecture | Kepler 2.0 (2013−2015) | Kepler (2012−2018) |
| GPU code name | GK210 | GK110 |
| Market segment | Workstation | Workstation |
| Release date | 17 November 2014 (10 years ago) | 12 November 2012 (12 years ago) |
| Launch price (MSRP) | no data | $3,199 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. 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 processing power | 4.113 TFLOPS | 3.524 TFLOPS |
| ROPs | 48 | 40 |
| TMUs | 208 | 208 |
Form factor & 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 |
VRAM capacity and type
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 | 1253 MHz | 1300 MHz |
| Memory bandwidth | 240.6 GB/s | 208.0 GB/s |
Connectivity and outputs
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 compatibility
List of supported 3D 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.
Pros & cons summary
| Performance score | 15.19 | 8.95 |
| Recency | 17 November 2014 | 12 November 2012 |
| Maximum RAM amount | 12 GB | 5 GB |
| Power consumption (TDP) | 300 Watt | 225 Watt |
Tesla K80 has a 69.7% higher aggregate performance score, an age advantage of 2 years, and a 140% higher maximum VRAM amount.
Tesla K20c, on the other hand, has 33.3% lower power consumption.
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.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
