Hey guys I was wondering if a single R9 290x sapphire (I will be overclocking it) with an 8350 fx (overclocked with the noctua heatsink) will be enough to run the future games in 4k. I assume that mantle will only improve more as newer drivers come out and amd is a solid choice. Do you guys think that this will be enough to run games anywhere from 30+ avg fps if i where to play games such as Battlefield hardline and Starwars battlefront 3 or will I need to crossfire this with another 290x, which I am somewhat afraid to do considering I read on one of the sapphire's reviews that it takes up 2 and 1/2 slots. Lastly if I get 2 290's will the 8350 be holding them back?