Tesla K20c and Quadro P400 - video card comparison
Tesla K20c
Quadro P400
Architecture
Kepler (2012−2018)
Pascal (2016−2021)
GPU code name
GK110
GP107
Market segment
Workstation
Workstation
Release date
November 2012
February 2017
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
None
Boost clock speed
-
1252 MHz
Core clock speed
706 MHz
1228 MHz
Floating-point performance
3,524 gflops
679.9 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
7,080 million
3,300 million
Pipelines / CUDA cores
2496
256
Power consumption (TDP)
225 Watt
30 Watt
Texture fill rate
146.8
20.03
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
Display Connectors
No outputs
3x mini-DisplayPort
DirectX
12 (11_0)
12 (12_1)
CUDA
3.5
6.1
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131