Minimal differences in Crysis 1.1 favor DDR3 boards over DDR2 at low detail settings, but the DDR3-equiped Asus P5E3 Premium falls into last place at the highest tested resolution and details. Not that the high-resolution frame rates will matter in actual use, since dropping below 30 frames per second quickly makes games unplayable.
Supreme Commander is almost playable at 1920x1200 pixel resolution and high details for all motherboards, but the point-of-view for this type of game makes frames-per-second a little less critical. The DDR2-equipped Gigabyte X48-DQ6 takes an unexpected lead at lower settings, where performance is more CPU dependent.
The Asus P5E3 Premium takes the lead in Unreal Tournament 3 at both extremely low and extremely high settings, but this particular game is completely playable at the highest detail settings and a 1920x1200 pixel graphics resolution.