With the new MacBook, Apple has completed the transition of its portables to the Intel architecture.

On May 16, the MacBook replaced the nearly seven-year-old iBook and brought with it a new era of consumer-grade portables from Apple. For the first time since the clam-shell style iBooks were discontinued at the beginning of 2001 is an Apple portable available in more than one color. Apple has been toying with the idea of offering both black and white devices since the iPod nano and subsequently the video-capable iPod, and now they've begun offering their consumer-grade portable laptop, the predictably named MacBook, in similar glossy black and white models.

Ars reviews the MacBook to see how it stacks up against its PowerPC predecessor and Apple's other Intel machines.