GeForce GT 640 Rev. 2 and Radeon HD 2600 PRO AGP - video card comparison
GeForce GT 640 Rev. 2
Radeon HD 2600 PRO AGP
Architecture
Kepler 2.0 (2013−2015)
TeraScale (2005−2013)
GPU code name
GK208
RV630
Market segment
Desktop
Desktop
Release date
May 2013
June 2007
Interface
PCIe 2.0 x8
AGP 8x
Supplementary power connectors
None
None
Core clock speed
1046 MHz
594 MHz
Floating-point performance
803.3 gflops
142.56 gflops
Manufacturing process technology
28 nm
65 nm
Number of transistors
915 million
390 million
Pipelines / CUDA cores
384
120
Power consumption (TDP)
49 Watt
35 Watt
Texture fill rate
33.47
4.752
Memory type
GDDR5
DDR2
Maximum RAM amount
1 GB
512 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5008 MHz
792 MHz
Memory bandwidth
40.06 GB/s
12.67 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
10.0 (10_0)
CUDA
3.5
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A