My buddy wants me to help him build a computer, I really want to get him a 1070 but his budget can only support an i5 6500 after I get that GPU. If he wants the 1070 and an i7 he'd have to compromise 8gb of ram, his SSD, and his HDD. He games at 1080p and I was wondering if the i5 6500 would be a bottleneck for the GTX 1070, is it worth going for an i7?