So a 299$ part to compete in performance with the 7870. The 580 is about ~5% faster than the 1ghz 7870's, and a full 670 is about ~25% faster than a 580. Throw in going from 256bit bus -> 192bit bus (25% drop), and ~10% lower clock rates.... this card ends up what? 5-10% faster than a 580 or so? decent, just kinda late compaired to how long the 7870's been out (even if its say 10% faster).