Hey guys, haven't been around for a long time. I built a new system a couple years ago using the ASUS Crosshair V Formula AM3+ board (not formula Z), and FX 8150 current;y at 4.4Ghz, 16gb of GSkill DDR3 @1600, Diamond HD7970. My question to you all is, would it be worthwhile to upgrade to the FX 8350 or 9370? Is my board even compatible with the 9370? Also, would it be worth upgrading from a single HD7970 to a R9 290x? I do gaming at the 1920x1080 resolution currently, with hope of grabbing a 4k monitor when the prices are more reasonable. Thank you all in advance!