Tesla K40c and Tesla K80m - video card comparison
Tesla K40c
Tesla K80m
Architecture
Kepler (2012−2018)
Kepler 2.0 (2013−2015)
GPU code name
GK180
GK210
Market segment
Workstation
Workstation
Release date
October 2013
November 2014
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 8-pin
Boost clock speed
876 MHz
824 MHz
Core clock speed
745 MHz
562 MHz
Floating-point performance
4,291 gflops
2x 4,373 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
7,080 million
7,100 million
Pipelines / CUDA cores
2880
2x 2496
Power consumption (TDP)
245 Watt
300 Watt
Texture fill rate
210.2
2x 182.2 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
12 GB
2x 12 GB
Memory bus width
384 Bit
2x 384 Bit
Memory clock speed
6008 MHz
5012 MHz
Memory bandwidth
288.4 GB/s
2x 240.6 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12.0 (11_1)
CUDA
3.5
-
OpenCL
1.2
-
OpenGL
4.6
4.6
Shader Model
5.1
-
Vulkan
1.1.103
-