Apple has discontinued sales of its 15-inch PowerBook G4s as the new Intel-powered MacBook Pros ship.

Just two models of G4 PowerBook remain available through the company's online store: the £1,099 12-inch 1.5GHz PowerPC G4 and the £1,749 17-inch 1.67GHz PowerPC G4 .

Unlike the PowerBook G4 range, Apple's new MacBook Pro lacks an internal modem and a FireWire 800 port. It does, however, offer a 1.83GHz, 2.0GHz or 2.16GHz Intel Core Duo processor; a 15.4-inch display; a faster system architecture and better graphics performance than the 15-inch machines it replaces.

The MacBook Pro costs from £1,429.