Im looking for a power supply for my new build. I will have a gtx 1060 and a core i5 6400, no overclocking, used for gaming. I've heard about the tiers of the psu's thats why im asking you guys. The power supply i was originally going with was a rosewill glacier 600m or a corsair vs650 as i saw them being on the tier 3 in the ranking i was a bit worried if i should get a better psu. Also what is the recommended amount of wattage for this type of system gtx 1060 + i5 6400, 8gb ram, 1ssd 1hdd, i will be overclocking gpu.