anything past a 4670k and you wont see any appreciably fps gain for any game made. if you want some extra insurance, just get a 4770k. a email@example.com vs a firstname.lastname@example.org is going to take synthetics to show a difference and it will be minimal. the huge difference is that you have to shell out for a pricy 2011 socket for the 4820k. if this is purely for gaming, there is no reason to go past a 4770k and its 1150 socket. you would get more fps in games by getting a 780ti model that allows for extreme overclocking like the evga classified 780ti kingpin.