Which one is better to use with a gtx 850m ? Budget wise the i3 is a lot cheaper than the other. I need to play games like may payne 3, last light, far cry 3, witcher 2 at medium settings. I don't really need multitasking so maybe the i7 quad core is not needed ? the i5 and i3 are dual core though so I don't know if they are good for gaming or not.