Tesla K80 and Tesla K40t - video card comparison
Tesla K80
Tesla K40t
Architecture
Kepler 2.0 (2013−2015)
Kepler (2012−2018)
GPU code name
GK210
GK110B
Market segment
Workstation
Workstation
Release date
November 2014
November 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 8-pin
-
Boost clock speed
824 MHz
876 MHz
Core clock speed
562 MHz
745 MHz
Manufacturing process technology
28 nm
28 nm
Number of transistors
7,100 million
7,080 million
Pipelines / CUDA cores
2496
2880
Power consumption (TDP)
300 Watt
245 Watt
Texture fill rate
171.4
210.2
Memory type
GDDR5
GDDR5
Maximum RAM amount
12 GB
12 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
5012 MHz
6008 MHz
Memory bandwidth
240.6 GB/s
288.4 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (11_1)
CUDA
3.7
3.5
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126