Tesla M40 24 GB and Tesla K20c - video card comparison
Tesla M40 24 GB
Tesla K20c
Architecture
Maxwell 2.0 (2015−2019)
Kepler (2012−2018)
GPU code name
GM200
GK110
Market segment
Workstation
Workstation
Release date
November 2015
November 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
8-pin EPS
1x 6-pin + 1x 8-pin
Boost clock speed
1112 MHz
-
Core clock speed
-
706 MHz
Floating-point performance
-
3,524 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
8,000 million
7,080 million
Pipelines / CUDA cores
3072
2496
Power consumption (TDP)
250 Watt
225 Watt
Texture fill rate
213.5
146.8
Memory type
GDDR5
GDDR5
Maximum RAM amount
24 GB
5 GB
Memory bus width
384 Bit
320 Bit
Memory clock speed
6 GB/s
5200 MHz
Memory bandwidth
288.4 GB/s
208.0 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (11_0)
CUDA
5.2
3.5
OpenCL
3.0
1.2
OpenGL
4.6
4.6
Shader Model
6.7
5.1
Vulkan
1.3
1.1.126