Radeon HD 7670 OEM and GeForce GT 420 OEM - video card comparison
Radeon HD 7670 OEM
GeForce GT 420 OEM
Architecture
TeraScale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Turks
GF108
Market segment
Desktop
Desktop
Release date
January 2012
September 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
800 MHz
700 MHz
Floating-point performance
768.0 gflops
134.4 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
716 million
585 million
Pipelines / CUDA cores
480
48
Power consumption (TDP)
66 Watt
50 Watt
Texture fill rate
19.20
2.800
Memory type
GDDR5
DDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4000 MHz
1800 MHz
Memory bandwidth
64 GB/s
28.8 GB/s
Display Connectors
1x DVI, 1x DisplayPort, 1x VGA
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
2.1
OpenCL
1.2
1.1
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
N/A