Which CPU + GPU combo is better ?

Foxyf76

Honorable
Mar 24, 2013
12
0
10,510
Could someone please tell me which of these CPU and GPU combo are better for gaming. All will be used with an 8gb (2x4) RAM. Here they are :

Intel i5 3570k with Radeon HD 7850
Intel i5 3570k with GeForce GTX 660
AMD 8350 with Radeon HD 7850
AMD 8350 with GeForce GTX 660
AMD 6100 with GeForce GTX 660 Ti

So there they are. I am aware that the GTX 660 Ti is the best GPU from the list, but I'm not keen on the 6100, compared to the 8350 or the i5. I want to make sure the combo I pick have reasonably good performance too. So please let me know what you guys think. Much appreciated!
 

Foxyf76

Honorable
Mar 24, 2013
12
0
10,510

Well my total budget for the whole PC is about $700-720