Radeon HD 6450A and GeForce GT 420 OEM - video card comparison
Radeon HD 6450A
GeForce GT 420 OEM
Architecture
TeraScale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Caicos
GF108
Market segment
Desktop
Desktop
Release date
April 2011
September 2010
Interface
MXM-A (3.0)
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
625 MHz
700 MHz
Floating-point performance
200 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)
25 Watt
50 Watt
Texture fill rate
5.000
2.800
Memory type
DDR3
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
No outputs
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