Quadro P400 vs Tesla K20c

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Combined performance score

Tesla K20c
8.89
+111%

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 ranking453639
Place by popularitynot in top-100not in top-100
Value for money1.410.79
ArchitectureKepler (2012−2018)Pascal (2016−2021)
GPU code nameGK110GP107
Market segmentWorkstationWorkstation
Release date12 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)
Value for money

Performance to price ratio. The higher, the better.

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 cores2496256
Core clock speed706 MHz1228 MHz
Boost clock speedno data1252 MHz
Number of transistors7,080 million3,300 million
Manufacturing process technology28 nm14 nm
Power consumption (TDP)225 Watt30 Watt
Texture fill rate146.820.03
Floating-point performance3,524 gflops679.9 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).

InterfacePCIe 2.0 x16PCIe 3.0 x16
Length267 mm145 mm
Width2-slot1-slot
Supplementary power connectors1x 6-pin + 1x 8-pinNone

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 typeGDDR5GDDR5
Maximum RAM amount5 GB2 GB
Memory bus width320 Bit64 Bit
Memory clock speed5200 MHz4008 MHz
Memory bandwidth208.0 GB/s32.06 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 ConnectorsNo outputs3x mini-DisplayPort

API support

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX12 (11_0)12 (12_1)
Shader Model5.16.4
OpenGL4.64.6
OpenCL1.21.2
Vulkan1.1.1261.2.131
CUDA3.56.1

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.

User ratings

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NVIDIA Tesla K20c
Tesla K20c
NVIDIA Quadro P400
Quadro P400

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