It should be noted that earlier this year an Apple machine with a chip running at 667 MHz was the second fastest in Apple's desktop G4 lineup.

FORBES: Apple Speeds Up The Powerbook

At the heart of the personal genome machine is a silicon chip with 21 million transistors on it--the equivalent of a desktop computer circa 1995.

FORBES: Magazine Article

In fact just this kind of photon-based quantum factoring has been accomplished before, but the ability to put the heart of the machine on a standard chip is promising for future applications of the idea.

BBC: Quantum computer slips onto chips