Quadro P400 and Tesla K20X - video card comparison
Quadro P400
Tesla K20X
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
GP107
GK110
Market segment
Workstation
Workstation
Release date
February 2017
November 2012
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin + 1x 8-pin
Boost clock speed
1252 MHz
-
Core clock speed
1228 MHz
732 MHz
Floating-point performance
679.9 gflops
3,935 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,300 million
7,080 million
Pipelines / CUDA cores
256
2688
Power consumption (TDP)
30 Watt
235 Watt
Texture fill rate
20.03
164.0
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
6 GB
Memory bus width
64 Bit
384 Bit
Memory clock speed
4008 MHz
5200 MHz
Memory bandwidth
32.06 GB/s
249.6 GB/s
Display Connectors
3x mini-DisplayPort
No outputs
DirectX
12 (12_1)
12 (11_0)
CUDA
6.1
3.5
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126