i plan on buying pc parts during the black friday sales this year to upgrade my pc to play bf4. right now my pc setup is: fx 6100 4.3ghz, h.i.s 7850 2gb, 8gb 1866mhz ram. i played the beta last month and my pc hardly ran it got around 15-20fps. i dont really have a budget but i want at least 70 fps. so what are some parts i can get to get that performance?