You won't be able to max out games like Shadow of Mordor even at 1080P, Hell, I cannot do that either because it requires 6GB of vRAM. However, that card should be able to play pretty much anything maxed at 1080P. For 2560, that is a different story, but it should have enough to play most games but may require some to be turned down a little. Though, since you have crossfire, I think you should be fine even with new games. Plenty of power there.