Tesla K40st and Tesla C2090 - video card comparison
Tesla K40st
Tesla C2090
Architecture
Kepler (2012−2018)
Fermi 2.0 (2010−2014)
GPU code name
GK110B
GF110
Market segment
Workstation
Workstation
Release date
November 2013
July 2011
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Core clock speed
575 MHz
651 MHz
Floating-point performance
4,291 gflops
1,331.2 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
7,080 million
3,000 million
Pipelines / CUDA cores
2880
512
Power consumption (TDP)
245 Watt
250 Watt
Texture fill rate
138.0
41.66
Memory type
GDDR5
GDDR5
Maximum RAM amount
12 GB
6 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
6008 MHz
3696 MHz
Memory bandwidth
288.4 GB/s
177.4 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (11_0)
CUDA
3.5
2.0
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A