GeForce GT 640 OEM and Radeon X550 - video card comparison
GeForce GT 640 OEM
Radeon X550
Architecture
Kepler (2012−2018)
Rage 9 (2003−2008)
GPU code name
GK107
RV370
Market segment
Desktop
Desktop
Release date
April 2012
July 2005
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
None
Core clock speed
797 MHz
400 MHz
Floating-point performance
612.1 gflops
-
Manufacturing process technology
28 nm
110 nm
Number of transistors
1,270 million
107 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
50 Watt
-
Texture fill rate
25.50
1.600
Memory type
DDR3
DDR
Maximum RAM amount
2 GB
128 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
500 MHz
Memory bandwidth
28.51 GB/s
8 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
9.0
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
-
Vulkan
1.1.126
N/A