Better GPU vs Better CPU

Dec 12, 2015
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Here are my specs:http://pcpartpicker.com/p/kkvBXL
Should I go with a i7 processor and a gtx 960

or go with i5 processor and gtx 970
This all for gaming :D (Which one will get better performance and fps?)
I play Fallout 4, Witcher 3, Battlefiled 4, and Skyrim
(Also if I need to switch anything just let me know :D)
Thanks :D