I need some help to find out which of these two cards is better for gaming. (I don't intend to play games on ultra/high settings). I just need to know which of the two, AMD Radeon HD 7750 or nVidia GT 520, is better for gaming. The games I intend to play are things like PayDay: The Heist, Call of Duty: World at War, Saints Row 3, Darksiders 2, ARMA 2.
If you'd like to which CPU and other things the computers have you can follow these links to get to them: