Tesla M40 and Tesla K40d - video card comparison
Tesla M40
Tesla K40d
Architecture
Maxwell 2.0 (2015−2019)
Kepler (2012−2018)
GPU code name
GM200
GK110B
Market segment
Workstation
Workstation
Release date
November 2015
November 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
8-pin EPS
-
Boost clock speed
1112 MHz
876 MHz
Core clock speed
948 MHz
745 MHz
Floating-point performance
6,844 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
8,000 million
7,080 million
Pipelines / CUDA cores
3072
2880
Power consumption (TDP)
250 Watt
245 Watt
Texture fill rate
213.5
210.2
Memory type
GDDR5
GDDR5
Maximum RAM amount
12 GB
12 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
6 GB/s
6008 MHz
Memory bandwidth
288.4 GB/s
288.4 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (11_1)
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