I am wanting to buy a R9 290 (Not x) but I need to know how much big of a power supply will i need? I am thinking about getting 750w, but on the page it says it takes 750w for the graphics card. so idk, my processor is the FX 8350, so take that into account. How many watts will i need? Will this do the trick? http://www.newegg.com/Product/Product.aspx?Item=N82E16817182072&cm_re=Power_Supply_850w-_-17-182-072-_-Product also here is the Graphics Card. http://www.newegg.com/Product/Product.aspx?Item=N82E16814202103&cm_re=r9_290-_-14-202-103-_-Product