Tesla P40 and Tesla K40s - video card comparison
Tesla P40
Tesla K40s
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
GP102
GK110B
Market segment
Workstation
Workstation
Release date
September 2016
November 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
8-pin EPS
-
Boost clock speed
1531 MHz
876 MHz
Core clock speed
1303 MHz
745 MHz
Floating-point performance
11,758 gflops
4,291 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
11,800 million
7,080 million
Pipelines / CUDA cores
3840
2880
Power consumption (TDP)
250 Watt
245 Watt
Texture fill rate
367.4
210.2
Memory type
GDDR5
GDDR5
Maximum RAM amount
24 GB
12 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
7.2 GB/s
6008 MHz
Memory bandwidth
347.1 GB/s
288.4 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (11_1)
CUDA
6.1
3.5
OpenCL
3.0
1.2
OpenGL
4.6
4.6
Shader Model
6.7
5.1
Vulkan
1.3
1.1.126