In Doom 3 it is clear that the mobile CPU is not supplying the system with as much information as it would like. The 1024x768 scores are as low as the 1280x1024 scores. At its maximum resolution it provides plenty of frames per second even under the best image quality settings.
Half-Life 2: Lost Coast
In Half-Life 2: Lost Coast we can see the CPU-bound limitations of the mobile processor. The frame rates are not slow by any means but they would be much higher if the graphics processors were supported with more information. To note, we did not include the ATI X1900XT 256 in this chart as we still do not have a score due to some issues with our cards and the drivers.