Tesla P4 and Tesla K20s - video card comparison
Tesla P4
Tesla K20s
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
GP104
GK110
Market segment
Workstation
Workstation
Release date
September 2016
February 2013
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Boost clock speed
1114 MHz
-
Core clock speed
886 MHz
575 MHz
Floating-point performance
5,443 gflops
3,524 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
7,200 million
7,080 million
Pipelines / CUDA cores
2560
2496
Power consumption (TDP)
75 Watt
225 Watt
Texture fill rate
178.2
119.6
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
5 GB
Memory bus width
256 Bit
320 Bit
Memory clock speed
6008 MHz
5200 MHz
Memory bandwidth
192.3 GB/s
208.0 GB/s
Display Connectors
No outputs
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