The overclocking ability on products is sometimes one of the most important features. More often than not in the computer world you’re given the ability to buy a model or two down, and with a BIOS or easy to use application you can take that said product up to and often above the level of the top model.
The 8800GTS 512MB is only a little bit ahead of the 8800GT 512MB, but with its dual slot cooler and extra shaders on tap we thought that where the card may really shine is in the overclocking department.
Check it out at TweakTown. Overall the GeForce 8800 GT seems to be the best choice, it's $100 cheaper and with a bit of overclocking you can bring it to GeForce 8800 GTS 512 speeds without a problem.