GeForce GT 640 and Radeon HD 2600 XT - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon HD 2600 XT
GeForce GT 640
1209
Radeon HD 2600 XT
290
GeForce GT 640
Radeon HD 2600 XT
Architecture
Kepler (2012−2018)
TeraScale (2005−2013)
GPU code name
GK107
RV630
Market segment
Desktop
Desktop
Release date
June 2012
June 2007
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
None
Core clock speed
902 MHz
800 MHz
Floating-point performance
692.7 gflops
192 gflops
Manufacturing process technology
28 nm
65 nm
Number of transistors
1,270 million
390 million
Pipelines / CUDA cores
384
120
Power consumption (TDP)
65 Watt
45 Watt
Texture fill rate
28.86
6.400
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
256 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
1400 MHz
Memory bandwidth
28.51 GB/s
22.4 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
10.0 (10_0)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A