I currently have a Dell U2312HM and a GTX 660. My birthday's in April, and I want to upgrade either one of these. Upgrading a monitor is something that you don't do very often, as opposed to a new GPU (my 660 is barely 2 years old). I have tested performance at 1440p and there really isn't a game (that I tested and own) that I can't run at that resolution- albeit with lower settings.