gtx 1060 i5 8600k

Hello guys, im having a bad time last couple of days thinking should i upgrade my cpu. I need someone to help me here. I have: I7 3770 16gb ram 1600mhz GTX 1070 Asus Dual Would i gain performance boost if i buy: i5 8600K Z370P D3 Motherboard 16gb ram kit 2666MHz GTX 1070 Asus Dual( I would keep...