Quadro 4000 and GeForce GT 640 Rev. 2 - video card comparison
Quadro 4000
GeForce GT 640 Rev. 2
Architecture
Fermi (2010−2014)
Kepler 2.0 (2013−2015)
GPU code name
GF100
GK208
Market segment
Workstation
Desktop
Release date
November 2010
May 2013
Interface
PCIe 2.0 x16
PCIe 2.0 x8
Supplementary power connectors
1x 6-pin
None
Core clock speed
475 MHz
1046 MHz
Floating-point performance
486.4 gflops
803.3 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
3,100 million
915 million
Pipelines / CUDA cores
256
384
Power consumption (TDP)
142 Watt
49 Watt
Texture fill rate
15.20
33.47
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
2808 MHz
5008 MHz
Memory bandwidth
89.86 GB/s
40.06 GB/s
Display Connectors
1x DVI, 2x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
12 (11_0)
12 (11_0)
CUDA
2.0
3.5
OpenCL
1.1
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
N/A
1.1.126