GeForce 8800 Ultra and Radeon X1900 XTX - video card comparison
GeForce 8800 Ultra
Radeon X1900 XTX
Architecture
Tesla (2006−2010)
R500 (2005−2007)
GPU code name
G80
R580
Market segment
Desktop
Desktop
Release date
May 2007
January 2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
SLI options
+
-
Core clock speed
612 MHz
650 MHz
CUDA cores
612
-
Floating-point performance
387.1 gflops
-
Manufacturing process technology
90 nm
90 nm
Number of transistors
681 million
384 million
Pipelines / CUDA cores
128
-
Power consumption (TDP)
171 Watt
135 Watt
Texture fill rate
39.2 billion/sec
10.40
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
384 Bit
256 Bit
Memory clock speed
1080 MHz
1550 MBps
Memory bandwidth
103.7 GB/s
49.6 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
11.1 (10_0)
9.0c (9_3)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
3.3
2.1 (full)
Shader Model4.03.0
Vulkan
N/A
N/A