Tesla K40c and Tesla K20m - video card comparison
Passmark - benchmark score Tesla K40c vs Tesla K20m
Tesla K40c
4629
Tesla K20m
4565
Tesla K40c
Tesla K20m
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK180
GK110
Market segment
Workstation
Workstation
Release date
October 2013
January 2013
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 6-pin + 1x 8-pin
Boost clock speed
876 MHz
-
Core clock speed
745 MHz
706 MHz
Floating-point performance
4,291 gflops
3,524 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
7,080 million
7,080 million
Pipelines / CUDA cores
2880
2496
Power consumption (TDP)
245 Watt
225 Watt
Texture fill rate
210.2
146.8
Memory type
GDDR5
GDDR5
Maximum RAM amount
12 GB
5 GB
Memory bus width
384 Bit
320 Bit
Memory clock speed
6008 MHz
5200 MHz
Memory bandwidth
288.4 GB/s
208.0 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (11_0)
CUDA
3.5
3.5
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.103
1.1.126