What is the best GPU that I can buy for 160$? It has to be from newegg. I want to buy this http://www.newegg.com/Product/Product.aspx?Item=N82E16814202090&cm_re=sapphire_r9_270-_-14-202-090-_-Product I wanna play games like thief,tomb raider,soul suspect,rust,the forest and COD at med-high...