Radeon X1800 XT and Radeon X800 XT - video card comparison
Radeon X1800 XT
Radeon X800 XT
Architecture
R500 (2005−2007)
R400 (2004−2008)
GPU code name
R520
R423
Market segment
Desktop
Desktop
Release date
October 2005
December 2004
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
600 MHz
500 MHz
Manufacturing process technology
90 nm
130 nm
Number of transistors
321 million
160 million
Power consumption (TDP)
113 Watt
54 Watt
Texture fill rate
9.600
8.000
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1400 MHz
1000 MHz
Memory bandwidth
44.8 GB/s
32 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x VGA, 1x S-Video
DirectX
9.0c (9_3)
9.0b (9_2)
OpenCL
N/A
N/A
OpenGL
2.0
2.0
Shader Model
3.0
-
Vulkan
N/A
N/A