GeForce 8800 GTX and Radeon X1900 XT - video card comparison
GeForce 8800 GTX
Radeon X1900 XT
Architecture
Tesla (2006−2010)
R500 (2005−2007)
GPU code name
G80
R580
Market segment
Desktop
Desktop
Release date
November 2006
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
576 MHz
625 MHz
CUDA cores
575
-
Floating-point performance
345.6 gflops
-
Manufacturing process technology
90 nm
90 nm
Number of transistors
681 million
384 million
Pipelines / CUDA cores
128
-
Power consumption (TDP)
155 Watt
100 Watt
Texture fill rate
36.8 billion/sec
10.00
Memory type
GDDR3
GDDR3
Maximum RAM amount
768 MB
256 MB
Memory bus width
384 Bit
256 Bit
Memory clock speed
900 MHz
1450 MBps
Memory bandwidth
86.4 GB/s
46.4 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