GeForce 7900 GTX and Radeon X1900 XT - video card comparison
GeForce 7900 GTX
Radeon X1900 XT
Architecture
Curie (2003−2013)
R500 (2005−2007)
GPU code name
G71
R580
Market segment
Desktop
Desktop
Release date
March 2006
January 2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
650 MHz
625 MHz
Manufacturing process technology
90 nm
90 nm
Number of transistors
278 million
384 million
Power consumption (TDP)
84 Watt
100 Watt
Texture fill rate
15.60
10.00
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1600 MHz
1450 MBps
Memory bandwidth
51.2 GB/s
46.4 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
9.0c (9_3)
9.0c (9_3)
OpenCL
N/A
N/A
OpenGL
2.1
2.1 (full)
Shader Model3.03.0
Vulkan
N/A
N/A