I have an fx 8320 @ stock on a GA-970A-D3P rev 1.0 mobo 16gb in 4x4gb @ 1866, R9 295x2@ stock, have just done a clean install of windows 8.1 pro a few days ago, everything is updated, latest drivers just fixed with DDU fresh install of 14.12 driver, why is it that on BF4 I get drops from 90 fps...