Radeon X1950 XTX and GeForce 6800 Ultra - video card comparison
Radeon X1950 XTX
GeForce 6800 Ultra
Architecture
R500 (2005−2007)
Curie (2003−2013)
GPU code name
R580+
NV45
Market segment
Desktop
Desktop
Release date
October 2006
July 2004
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
650 MHz
425 MHz
Manufacturing process technology
90 nm
130 nm
Number of transistors
384 million
222 million
Power consumption (TDP)
125 Watt
81 Watt
Texture fill rate
10.40
6.800
Memory type
GDDR4
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
2000 MHz
1100 MHz
Memory bandwidth
64 GB/s
35.2 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
2.0
2.1
Shader Model
3.0
3.0
Vulkan
N/A
N/A