hi my current set up is z97x sli motherboard, 8gb ram, 980ti and i5 4690k, im looking at upgrading my pc a bit since i have some disposable income, i was thinking getting some more ram? would you say 16gb is good enough for gaming atm? like currently im just playing fallout4 and i will be playing assassins creed and battlefront which are more heavy, what do you guys think? thanks