GeForce GT 640M Mac Edition and Tesla K40t - video card comparison
GeForce GT 640M Mac Edition
Tesla K40t
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK107
GK110B
Market segment
Desktop
Workstation
Release date
February 2013
November 2013
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Boost clock speed
-
876 MHz
Core clock speed
745 MHz
745 MHz
Floating-point performance
572.2 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
7,080 million
Pipelines / CUDA cores
384
2880
Power consumption (TDP)
32 Watt
245 Watt
Texture fill rate
23.84
210.2
Memory type
GDDR5
GDDR5
Maximum RAM amount
512 MB
12 GB
Memory bus width
64 Bit
384 Bit
Memory clock speed
5000 MHz
6008 MHz
Memory bandwidth
40 GB/s
288.4 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (11_1)
CUDA
3.0
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