it's not easy to compare them, mostly because you can't really find a even playing field for them (you can;t plug the mobile card on pci ex and you can't put 1155 socket cpu-s in laptops) so in games where the cpu matters, the mobile is crippled by default. the "specs" look about the same so i would say if you want mobility the 8970m is one of the best mobile graphics you can get.