GeForce 6600 GT and GeForce 8800 GTS 640 - video card comparison
GeForce 6600 GT
GeForce 8800 GTS 640
Architecture
Curie (2003−2013)
Tesla (2006−2010)
GPU code name
NV43 A2
G80
Market segment
Desktop
Desktop
Release date
August 2004
November 2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
500 MHz
513 MHz
Floating-point performance
-
228.1 gflops
Manufacturing process technology
110 nm
90 nm
Number of transistors
146 million
681 million
Pipelines / CUDA cores
-
96
Power consumption (TDP)
-
143 Watt
Texture fill rate
4.000
24.62
Memory type
GDDR3
GDDR3
Maximum RAM amount
128 MB
640 MB
Memory bus width
128 Bit
320 Bit
Memory clock speed
1000 MHz
1584 MHz
Memory bandwidth
16 GB/s
63.36 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
2x DVI, 1x S-Video
DirectX
9.0c (9_3)
11.1 (10_0)
CUDA
-
+
OpenCL
N/A
1.1
OpenGL
2.1
3.3
Shader Model
3.0
4.0
Vulkan
N/A
N/A