OK so I upgraded from a AMD FX 6300 to a Core I5, from a M5A97 to a Fatal1ty H97 performance Ser1es, now I have 2 X 7950 with a slight OC, would it be wise to upgrade to a GTX970 or not, and I have 16 GB RAM, woud it be wiser to Upgrade to 32 GB RAM or not?