GeForce GT 640 Rev. 2 and Radeon E2400 - video card comparison
GeForce GT 640 Rev. 2
Radeon E2400
Architecture
Kepler 2.0 (2013−2015)
TeraScale (2005−2013)
GPU code name
GK208
RV610
Market segment
Desktop
Desktop
Release date
May 2013
June 2007
Interface
PCIe 2.0 x8
MXM-II
Supplementary power connectors
None
-
Core clock speed
1046 MHz
600 MHz
Floating-point performance
803.3 gflops
48 gflops
Manufacturing process technology
28 nm
65 nm
Number of transistors
915 million
180 million
Pipelines / CUDA cores
384
40
Power consumption (TDP)
49 Watt
25 Watt
Texture fill rate
33.47
2.400
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
128 MB
Memory bus width
64 Bit
64 Bit
Memory clock speed
5008 MHz
1400 MHz
Memory bandwidth
40.06 GB/s
11.2 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
No outputs
HDMI
+
-
DirectX
12 (11_0)
10.0 (10_0)
CUDA
3.5
-
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A