My cousin has recently built a new pc. He has a gtx 750 ti and a 4th generation core i5, and everything else is basically the same or similar. As an example, on minecraft, with maximum settings, he gets around 500 fps on a server, however I have gtx 660 ti with i5 3470 and I thought it was supposed to be better and it is more money and stuff but I only get about 150 fps so is mine broken or something or is his graphics card better and stuff