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Spec GeForce 8800 GTS 640
Overview
Product name NVIDIA GeForce 8800 GTS 640
Architecture Tesla
Generation / family GeForce 8 Series
GPU codename G80
Launch date 2006-11-08
Market segment Desktop in GeForce 8 Series
Board type / entry type Reference GPU
GPU
Process node TSMC 90 nm
Die size 484 mm²
Transistor count 0.68 billion
GPU chip G80
SM / multiprocessor count 12
CUDA Cores 96
ROPs 20
TMUs 24
Clocks
Base / Core clock 513 MHz
Boost clock 513 MHz
Memory clock 792 MHz
Memory
Memory size 640 MB
Memory type GDDR3
Memory bus width 320-bit
Memory bandwidth 63.36 GB/s
Bus / Interface
Bus interface PCIe 1.0 x16
AGP / PCI / PCIe distinction PCIe
Power
TDP / TBP / board power 143 W
Recommended PSU 300 W
Power connectors 1x 6-pin
Slot width Dual-slot, 267 mm length
Display / Media
Display outputs 2x DVI, 1x S-Video
Features
DirectX support DirectX 10.0
OpenGL support OpenGL 3.3
CUDA support 1.0
Shader Model 4.0
Performance / Benchmarks
FP32 throughput 0.23 TFLOPS

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