NVIDIA GeForce 8800 GTS 640 vs NVIDIA GeForce 8800 GTX

Table of Contents

Graphics Processor

GPU model G80 G80
GPU variant G80-100-K0-A2 G80-300-A2
Architecture Tesla Tesla
Foundry TSMC TSMC
Manufacturing process 90 nm 90 nm
Number of transistors 681 million 681 million
Die size 484 mm² 484 mm²

Graphics Card

Release date Nov 8th, 2006 Nov 8th, 2006
Generation GeForce 8 GeForce 8
Production End-of-life End-of-life
Launch price 449 USD 599 USD
Interface PCIe 1.0 x16 PCIe 1.0 x16
Reviews 403 in our database 73 in our database
Predecessor GeForce 7 PCIe GeForce 7 PCIe
Successor GeForce 9 GeForce 9

Clocks

GPU clock 513 MHz 576 MHz
Shader clock 1188 MHz 1350 MHz
Memory clock 792 MHz 1584 Mbps effective 900 MHz 1800 Mbps effective

Memory Configuration

Memory size 640 MB 768 MB
Memory type GDDR3 GDDR3
Memory bus width 320 bit 384 bit
Bandwidth 63.36 GB/s 86.40 GB/s

Render Configuration

Shading units 96 128
TMUs 24 32
ROPs 20 24
SM count 12 16
Cache L2 80 KB 96 KB

Performance

Pixel rate 10.26 GPixel/s 13.82 GPixel/s
Texture rate 24.62 GTexel/s 36.86 GTexel/s
FP32 (float) performance 228.1 GFLOPS 345.6 GFLOPS

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 267 mm 10.5 inches 270 mm 10.6 inches
TDP 143 W 155 W
Suggested PSU 300 W 450 W
Outputs 2x DVI1x S-Video 2x DVI1x S-Video
Power connectors 1x 6-pin 2x 6-pin
Board number P356 P355

API Support & Features

DirectX 11.1 (10_0) 11.1 (10_0)
OpenGL 3.3 3.3
OpenCL 1.1 (1.0) 1.1 (1.0)
Vulkan
CUDA 1.0 1.0
Shader model 4.0 4.0

Other Features

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