GeForce GT 640 Rev. 2 and Radeon 9550 - video card comparison
GeForce GT 640 Rev. 2
Radeon 9550
Architecture
Kepler 2.0 (2013−2015)
Rage 8 (2002−2006)
GPU code name
GK208
RV350
Market segment
Desktop
Desktop
Release date
May 2013
October 2003
Interface
PCIe 2.0 x8
AGP 8x
Supplementary power connectors
None
None
Core clock speed
1046 MHz
250 MHz
Floating-point performance
803.3 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
915 million
60 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
49 Watt
-
Texture fill rate
33.47
1.000
Memory type
GDDR5
DDR
Maximum RAM amount
1 GB
64 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5008 MHz
400 MHz
Memory bandwidth
40.06 GB/s
6.4 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
9.0 (9_0)
CUDA
3.5
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
-
Vulkan
1.1.126
N/A