Radeon HD 7450 OEM and GeForce GT 420 OEM - video card comparison
Radeon HD 7450 OEM
GeForce GT 420 OEM
Architecture
TeraScale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Caicos
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
625 MHz
700 MHz
Floating-point performance
200.0 gflops
134.4 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
370 million
585 million
Pipelines / CUDA cores
160
48
Power consumption (TDP)
18 Watt
50 Watt
Texture fill rate
5.000
2.800
Memory type
GDDR3
DDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
1066 MHz
1800 MHz
Memory bandwidth
8.528 GB/s
28.8 GB/s
Display Connectors
1x DVI, 1x HDMI
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