GeForce 8800 GTS 640 and GeForce 6600 GT AGP - video card comparison
GeForce 8800 GTS 640
GeForce 6600 GT AGP
Architecture
Tesla (2006−2010)
Curie (2003−2013)
GPU code name
G80
NV43 A2
Market segment
Desktop
Desktop
Release date
November 2006
November 2004
Interface
PCIe 1.0 x16
AGP 8x
Supplementary power connectors
1x 6-pin
1x Molex
Core clock speed
513 MHz
500 MHz
Floating-point performance
228.1 gflops
-
Manufacturing process technology
90 nm
110 nm
Number of transistors
681 million
146 million
Pipelines / CUDA cores
96
-
Power consumption (TDP)
143 Watt
47 Watt
Texture fill rate
24.62
4.000
Memory type
GDDR3
GDDR3
Maximum RAM amount
640 MB
128 MB
Memory bus width
320 Bit
128 Bit
Memory clock speed
1584 MHz
950 MHz
Memory bandwidth
63.36 GB/s
15.2 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x VGA, 1x S-Video
DirectX
11.1 (10_0)
9.0c (9_3)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
3.3
2.1
Shader Model
4.0
3.0
Vulkan
N/A
N/A