Radeon HD 3850 AGP and GeForce 7900 GS AGP - video card comparison
Radeon HD 3850 AGP
GeForce 7900 GS AGP
Architecture
TeraScale (2005−2013)
Curie (2003−2013)
GPU code name
RV670
G71
Market segment
Desktop
Desktop
Release date
January 2008
April 2006
Interface
AGP 8x
AGP 8x
Supplementary power connectors
1x 8-pin
1x Molex
Core clock speed
668 MHz
450 MHz
Floating-point performance
427.5 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
666 million
278 million
Pipelines / CUDA cores
320
-
Power consumption (TDP)
75 Watt
-
Texture fill rate
10.69
9.000
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1656 MHz
1320 MHz
Memory bandwidth
52.99 GB/s
42.24 GB/s
Display Connectors
2x DVI, 1x S-Video
1x 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