I have the 6500k, with a hyper 212 evo. I have not even tried or needed to over clock the cpu, i get 300 fps on csgo which is obviously plenty. I also have 2 GTX 770's in SLI which are power hungry AF, and have a 750 W power supply. dont skimp on the power supply, but I have cheap ass 30$ 8 gb of ram. I also only have a 256 gb SSD and still havent used it fully after over 6 months. Hope that gives you insight