How to Overclock the NVIDIA GeForce 8800 Series
 

Although this guide covers how to overclock all recent NVIDIA video cards, I have selected the FOXCONN NVIDIA GeForce 8800 GTS as my test subject, which I reviewed back in November 2006. Presently, the 640MB version of the GeForce 8800 GTS is the second-best video card available on the market. Gamers and computer enthusiasts alike have already speculated on how the GTS could be made to perform to the same level as the GeForce 8800 GTX with some tweaking. Unfortunately, this just isn't possible. What is possible though is taking a great product and making it even better; and do it all for free.

8800 Series Overclocking Tutorial