Hi! I am planning on getting a gaming setup (cheap). Im getting confused to what GPU to get. 6870 or 7770. According to this http://www.anandtech.com/bench/Product/536?vs=540 6870 performs well than the 7770. Now im wondering since 6870 is an older hardware than the 7770. Will there be any upgrades for the 7770 (no OC) that will make it perform more than the 6870.