You might have heard about tweaked driver such as StarStorm, Omega, nVIDIA Optimized Driver, etc. Do you know that tweaked driver is driver with special setttings to improve image quality and performance. But is it really neccessary to reinstall whole driver for extra settings? It's like you're trying to reinstall Windows to get the same Windows with some reg tweaks. Now it's for revolution. You don't need to waste your time and risk your PC for driver reinstallation.
NTweaker will handle it in simple and safe way than people ever imagined!