Feed Macworld: Under-the-hood changes boost MacBook performance (macworld.com)
Bumping processor speeds from 2.16GHz to 2.2GHz wouldn't figure to add that much to a MacBook's performance. But the laptops updated by Apple last week also feature improved graphics, a faster frontside bus, and greater RAM capacity. The result is a larger-than-expected gain for the new MacBooks in our Macworld Lab benchmarks.
