With anti-aliasing disabled at 1680x1050 and maximum in-game quality settings used our Radeon HD 5770 Crossfire configuration averaged 181fps delivering 3x the frame rate required for playable performance.
Its not until we near the bottom of the chart before we start to see undesirable performance from the value-minded GeForce GT 220 and Radeon HD 3850 cards. The Radeon HD 4670 averaged 56fps, which we consider passable while the GeForce 9600 GT averaged 64fps.
Increasing the resolution to 1920x1200 failed to provide any challenges for the top ten graphics cards tested as all averaged over 80fps. At the other end of the scale the Radeon HD 3850 and GeForce GT 220 were unable to deliver playable performance with 41 and 39fps respectively. Since we aim for an average of at least 60fps anything equal to or faster than the GeForce 9800 GT will be required at this resolution.
Now at the extreme resolution of 2560x1600 we can scrub out anything slower than the Radeon HD 4850 which averaged 56fps. The new Radeon HD 5750 delivered 60fps on average, and we found it more than capable of delivering a playable gaming experience with anti-aliasing disabled. The Radeon HD 4870 averaged 69fps while the GeForce GTX 260 managed 76fps. Both of these mainstream performance graphics cards delivered stellar performance.