The 6300 performs nearly the same as the 8350 in games, though in highly threaded programs, the 8350 wins. The 8350 does have a higher clock speed, which is helpful if you don't want to OC. http://www.tomshardware.com/reviews/tahiti-le-7870-7930-benchmark,3401-5.html The charts there show that the 7870 Myst performs near to the 7870, however, it is a strong over clocker. You should be happy with the 7870GHz, but if you plan to OC, get the Myst. -Opinion only!!