GeForce GT 640 Rev. 2 and Radeon X1650 PRO - video card comparison
GeForce GT 640 Rev. 2
Radeon X1650 PRO
Architecture
Kepler 2.0 (2013−2015)
Ultra-Threaded SE
GPU code name
GK208
RV530
Market segment
Desktop
Desktop
Release date
May 2013
February 2007
Interface
PCIe 2.0 x8
PCIe 1.0 x16
Supplementary power connectors
None
None
Core clock speed
1046 MHz
600 MHz
Floating-point performance
803.3 gflops
-
Manufacturing process technology
28 nm
90 nm
Number of transistors
915 million
157 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
49 Watt
44 Watt
Texture fill rate
33.47
2.400
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
256 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5008 MHz
1400 MBps
Memory bandwidth
40.06 GB/s
22.4 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
9.0c (9_3)
CUDA
3.5
-
OpenCL
1.2
N/A
OpenGL
4.6
2.1
Shader Model
5.1
3.0
Vulkan
1.1.126
N/A