Benchmark Reviews published a guide on how to overclock NVIDIA GeForce 8800 Series cards. Specifically the guide shows you how to overclock the NVIDIA GeForce 8800 GTS.

Quote from the guide:
" 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. 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."
Read the full guide on Benchmark Reviews.

See also our review of the already overclocked Foxconn FV-N88SMCD2-ONOC 8800 GTS 320MB .