We used Fraps to measure StarCraft II's frame rates, recording five minutes of gameplay and using a replay of an 8-player online battle.
Battlefield: Bad Company 2 was tested using Fraps to record 60 seconds of gameplay from the level "Cold War" with the best quality settings and 4xAA/16xAF enabled.
We tested Civ V with a saved file that's more 300 turns into a game, offering a good representation of gameplay. Using Fraps, we measured the performance at various zoom levels while scrolling around the map.
Unsurprisingly, we didn't record any noteworthy fps discrepancies between the Z68 and P67.