Thanks for your response! great answer, I guess i'll hold off on the upgrade for now. Base on what you said, since games relys more on GPU, what case would be a good reason for me to upgrade from 630 to a 965? and is that extra + .6ghz even a big jump?
Getting 965 will help you in tasks like PS,3Dmax(mostly image/video editing software) also it helps in games that are CPU limited(they're few compared to GPU limited games) such as
WIC,GTA IV,Prototype etc.
As AstroTC mentioned,adding a CPU cooler will help you a lot in OC'ng your X4 630.