GeForce GT 640 and Radeon X1950 GT AGP - video card comparison
GeForce GT 640
Radeon X1950 GT AGP
Architecture
Kepler (2012−2018)
R500 (2005−2007)
GPU code name
GK107
RV570
Market segment
Desktop
Desktop
Release date
June 2012
February 2007
Interface
PCIe 3.0 x16
AGP 8x
Supplementary power connectors
None
2x Molex
Core clock speed
902 MHz
500 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
80 nm
Number of transistors
1,270 million
330 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
65 Watt
57 Watt
Texture fill rate
28.86
6.000
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
256 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1782 MHz
1200 MHz
Memory bandwidth
28.51 GB/s
38.4 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
9.0c (9_3)
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
3.0
Vulkan
1.1.126
N/A