I have all the parts except graphigraphic card and monitor so tell me is asus r9 290 great for gaming i know that it is a high end gpu but i have found on internet that this card has an issue with fps and people are getting 20-40 frames with this graphic card so please tell me shall i buy or shall i go with gtx 770 i want r9 290 because it has mantle also so please reply and tell me will a 27" full hd monitor run older games like prince of persia sands of time,warrior within and spider man 1,2 on full screen without pixel problem