Changes memory and core clock speeds for Creative drivers on GeForce based cards (DDR & SDR) and TNT 2 Ultra (although support for TNT 2 Ultra it's still in BETA stage).. The program is very easy to use.Set the clocks to the desired speeds and press Ok.That's it!
Creative Tweaker gives you the capability to program your own presets so that you'll be able to change clock speeds with a single click.