GeForce 8800 GTX and Radeon X1950 XTX - video card comparison
GeForce 8800 GTX
Radeon X1950 XTX
Architecture
Tesla (2006−2010)
R500 (2005−2007)
GPU code name
G80
R580+
Market segment
Desktop
Desktop
Release date
November 2006
October 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
650 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
125 Watt
Texture fill rate
36.8 billion/sec
10.40
Memory type
GDDR3
GDDR4
Maximum RAM amount
768 MB
512 MB
Memory bus width
384 Bit
256 Bit
Memory clock speed
900 MHz
2000 MHz
Memory bandwidth
86.4 GB/s
64 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
2.0
Shader Model
4.0
3.0
Vulkan
N/A
N/A