GeForce GT 640 OEM and Radeon HD 4670 - video card comparison
GeForce GT 640 OEM
Radeon HD 4670
Architecture
Kepler (2012−2018)
TeraScale (2005−2013)
GPU code name
GK107
RV730
Market segment
Desktop
Desktop
Release date
April 2012
September 2008
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
797 MHz
750 MHz
Floating-point performance
612.1 gflops
480.0 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
1,270 million
514 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
50 Watt
59 Watt
Texture fill rate
25.50
24.00
Memory type
DDR3
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
2000 MHz
Memory bandwidth
28.51 GB/s
32 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_0)
10.1 (10_1)
CUDA
3.0
-
OpenCL
1.2
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.1
Vulkan
1.1.126
N/A