Radeon HD 5670 and GeForce GT 640 Rev. 2 - video card comparison
Radeon HD 5670
GeForce GT 640 Rev. 2
Architecture
Terascale 2 (2009−2015)
Kepler 2.0 (2013−2015)
GPU code name
Redwood
GK208
Market segment
Desktop
Desktop
Release date
January 2010
May 2013
Interface
PCIe 2.0 x16
PCIe 2.0 x8
Supplementary power connectors
None
None
Core clock speed
775 MHz
1046 MHz
Floating-point performance
620.0 gflops
803.3 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
627 million
915 million
Pipelines / CUDA cores
400
384
Power consumption (TDP)
64 Watt
49 Watt
Texture fill rate
15.50
33.47
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1000 MHz
5008 MHz
Memory bandwidth
64 GB/s
40.06 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
3.5
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
1.1.126