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Tesla M40 and Tesla K20m - video card comparison


Passmark - benchmark score Tesla M40 vs Tesla K20m

Tesla M40
10687
Tesla K20m
4565

Tesla M40

Tesla K20m


Architecture
Maxwell 2.0 (2015−2019)
Kepler (2012−2018)

GPU code name
GM200
GK110

Market segment
Workstation
Workstation

Release date
November 2015
January 2013

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
948 MHz
706 MHz

Floating-point performance
6,844 gflops
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
12 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