Radeon HD 4670 and GeForce GT 420 OEM - video card comparison
Radeon HD 4670
GeForce GT 420 OEM
Architecture
TeraScale (2005−2013)
Fermi (2010−2014)
GPU code name
RV730
GF108
Market segment
Desktop
Desktop
Release date
September 2008
September 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
750 MHz
700 MHz
Floating-point performance
480.0 gflops
134.4 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
514 million
585 million
Pipelines / CUDA cores
320
48
Power consumption (TDP)
59 Watt
50 Watt
Texture fill rate
24.00
2.800
Memory type
GDDR3
DDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
2000 MHz
1800 MHz
Memory bandwidth
32 GB/s
28.8 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
2.1
OpenCL
1.1
1.1
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
N/A