Apple's sales literature claims the PowerBook G4 outperforms a 2.2GHz Pentium 4, but don't count on that claim. Running at full speed, a P4-M notebook will feel faster than a PowerBook G4, especially when running applications optimized for the Pentium 4 architecture. But when the P4-M throttles back to conserve the battery or keep from burning your lap, the more efficient PowerPC takes the lead.
baah, anyway i wonder how much faster os x would feel without antialiasing
i wish there is an option to shut it down