GeForce 8800 GS and GeForce 8800 GTS 640 - video card comparison
GeForce 8800 GS
GeForce 8800 GTS 640
Architecture
Tesla (2006−2010)
Tesla (2006−2010)
GPU code name
G92
G80
Market segment
Desktop
Desktop
Release date
January 2008
November 2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
550 MHz
513 MHz
Floating-point performance
264 gflops
228.1 gflops
Manufacturing process technology
65 nm
90 nm
Number of transistors
754 million
681 million
Pipelines / CUDA cores
96
96
Power consumption (TDP)
105 Watt
143 Watt
Texture fill rate
26.40
24.62
Memory type
GDDR3
GDDR3
Maximum RAM amount
384 MB
640 MB
Memory bus width
192 Bit
320 Bit
Memory clock speed
1600 MHz
1584 MHz
Memory bandwidth
38.4 GB/s
63.36 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
11.1 (10_0)
11.1 (10_0)
CUDA
1.1
+
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.0
4.0
Vulkan
N/A
N/A