Currently got and i7 930 @ 3.99ghz 6 gb triple channel ram 750w corsair psu and an msi r9 270x all in an antec 902 gaming case... I'm possibly thinking of selling the 270 and upgrading to a non reference 290 as they seem to be cheap atm ! How much of a performance gain would I see gaming at 1080p ? Do you think it's worth doing and would the rest of my system spec handle a 290 ok as it is like 4 year old now ..