GeForce 8800 GTS 320 and GeForce 8800 GTS 640 - video card comparison
GeForce 8800 GTS 320
GeForce 8800 GTS 640
Architecture
Tesla (2006−2010)
Tesla (2006−2010)
GPU code name
G80
G80
Market segment
Desktop
Desktop
Release date
February 2007
November 2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
513 MHz
513 MHz
Floating-point performance
228.1 gflops
228.1 gflops
Manufacturing process technology
90 nm
90 nm
Number of transistors
681 million
681 million
Pipelines / CUDA cores
96
96
Power consumption (TDP)
143 Watt
143 Watt
Texture fill rate
24.62
24.62
Memory type
GDDR3
GDDR3
Maximum RAM amount
320 MB
640 MB
Memory bus width
320 Bit
320 Bit
Memory clock speed
1584 MHz
1584 MHz
Memory bandwidth
63.36 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
+
+
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.0
4.0
Vulkan
N/A
N/A