Radeon HD 3450 and GeForce 7900 GX2 - video card comparison
Radeon HD 3450
GeForce 7900 GX2
Architecture
TeraScale (2005−2013)
Curie (2003−2013)
GPU code name
RV620
G71
Market segment
Desktop
Desktop
Release date
December 2007
April 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
2x 6-pin
Core clock speed
600 MHz
500 MHz
Floating-point performance
48 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
181 million
278 million
Pipelines / CUDA cores
40
-
Power consumption (TDP)
25 Watt
-
Texture fill rate
2.400
12.00
Memory type
DDR2
GDDR3
Maximum RAM amount
256 MB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
1000 MHz
1200 MHz
Memory bandwidth
8 GB/s
38.4 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
9.0c (9_3)
OpenCL
N/A
N/A
OpenGL
3.3
2.1
Shader Model
4.1
3.0
Vulkan
N/A
N/A