GeForce GT 640 and GeForce 9500 GT Rev. 2 - video card comparison
GeForce GT 640
GeForce 9500 GT Rev. 2
Architecture
Kepler (2012−2018)
Tesla (2006−2010)
GPU code name
GK107
G96B
Market segment
Desktop
Desktop
Release date
June 2012
July 2008
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
902 MHz
600 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
65 nm
Number of transistors
1,270 million
314 million
Pipelines / CUDA cores
384
32
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
28.86
9.600
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
1800 MBps
Memory bandwidth
28.51 GB/s
28.8 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
11.1 (10_0)
CUDA
3.0
1.1
OpenCL
1.2
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A