yes it does, the performance gap is big enough for you to notice on 1080p gaming especially on modern games and upcoming titles. 270x is only good for this year games I think (for 60fps on 1080p high setting, even some games can't even get to 60fps). This coming from 270X owner. But I suggest wait for Maxwell line up since what we know from 750Ti alone is Maxwell line up gonna be awesome. lower power consumption but more performance. you can just stick with your 270X, it will still provide 30fps on 1080p with decent setting next year I guess. I , too, have a very big urge to update my 270X since I have the money, but I'll reconsider untill Maxwell really come up.