Radeon HD 4850 and GeForce 7900 GS AGP - video card comparison
Radeon HD 4850
GeForce 7900 GS AGP
Architecture
Terascale 1 (2008−2010)
Curie (2003−2013)
GPU code name
RV770
G71
Market segment
Desktop
Desktop
Release date
June 2008
April 2006
Interface
PCIe 2.0 x16
AGP 8x
Supplementary power connectors
1x 6-pin
1x Molex
Core clock speed
625 MHz
450 MHz
Floating-point performance
1,000.0 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
956 million
278 million
Pipelines / CUDA cores
800
-
Power consumption (TDP)
110 Watt
-
Texture fill rate
25.00
9.000
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
993 MHz
1320 MHz
Memory bandwidth
63.55 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
1.1
N/A
OpenGL
3.3
2.1
Shader Model
4.1
3.0
Vulkan
N/A
N/A