I have a $400 budget to upgrade my PC. My GPU is a GTX 960 4gb and my CPU is an FX 4350. Should I spend all my money on a new GPU or buy a new processor. I was thinking about getting a GTX 1060 6gb for a GPU, or a Ryzen 5 1500x for a CPU. The games I play are CS:GO, GTA 5, Battlefield 1, and Cities skylines.