Performance to price ratio. The higher, the better.
Quadro P400 vs Tesla K20c
Combined performance score
Tesla K20c outperforms Quadro P400 by 111% in our combined benchmark results.
General info
GPU architecture, market segment, value for money and other general parameters compared.
Place in performance ranking | 453 | 639 |
Place by popularity | not in top-100 | not in top-100 |
Value for money | 1.41 | 0.79 |
Architecture | Kepler (2012−2018) | Pascal (2016−2021) |
GPU code name | GK110 | GP107 |
Market segment | Workstation | Workstation |
Release date | 12 November 2012 (11 years old) | 7 February 2017 (7 years old) |
Launch price (MSRP) | $3,199 | $119.99 |
Current price | $591 (0.2x MSRP) | $73 (0.6x MSRP) |
Tesla K20c has 78% better value for money than Quadro P400.
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 | 256 |
Core clock speed | 706 MHz | 1228 MHz |
Boost clock speed | no data | 1252 MHz |
Number of transistors | 7,080 million | 3,300 million |
Manufacturing process technology | 28 nm | 14 nm |
Power consumption (TDP) | 225 Watt | 30 Watt |
Texture fill rate | 146.8 | 20.03 |
Floating-point performance | 3,524 gflops | 679.9 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 2.0 x16 | PCIe 3.0 x16 |
Length | 267 mm | 145 mm |
Width | 2-slot | 1-slot |
Supplementary power connectors | 1x 6-pin + 1x 8-pin | None |
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 | 5 GB | 2 GB |
Memory bus width | 320 Bit | 64 Bit |
Memory clock speed | 5200 MHz | 4008 MHz |
Memory bandwidth | 208.0 GB/s | 32.06 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 | 3x mini-DisplayPort |
API support
List of supported graphics and general-purpose computing APIs, including their specific versions.
DirectX | 12 (11_0) | 12 (12_1) |
Shader Model | 5.1 | 6.4 |
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 1.2 |
Vulkan | 1.1.126 | 1.2.131 |
CUDA | 3.5 | 6.1 |
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 | 8.89 | 4.22 |
Recency | 12 November 2012 | 7 February 2017 |
Cost | $3199 | $119.99 |
Maximum RAM amount | 5 GB | 2 GB |
Chip lithography | 28 nm | 14 nm |
Power consumption (TDP) | 225 Watt | 30 Watt |
The Tesla K20c is our recommended choice as it beats the Quadro P400 in performance tests.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Similar GPU comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.