my son (13) plays lots of games, he is always complaining about lag, (GTA5, arma3,skyrim) he upgraded his ram to 10Gig, and he bought a Gforce GTX960 video card then found out his power supply needs replaced , So we put in a 600w powersupply, his system is a gateway desktop with a gateway motherboard DX4380g v1.02 , ad his chip is AMD A6-5400k apu w/radeon hd graphics single core. What chip and or motherboard should he buy under 200 bucks that would boost his performance with out breaking the bank, I might throw in 150 more if he is good and do his chores...lol, BTW his socket is a FM2