"Yeah, you heard right. Quad processors; every high-end Mac fanatic´s dream. Recent revelations from old-school friends at Apple whom we haven´t talked to in a while seem to suggest that the new "Apollo" PowerPC 7470 processors and Apple´s new PowerMac motherboard controller chip may make more than two G4 processors a reasonable price/performance proposition...and if the 7470 doesn´t do it, its next-generation brother, the PPC 7500, is purported to be less than a year away with its 500MHz RapidIO bus.
We don´t expect to see quad processors at the August Apple Event, but the new PowerMac enclosure has clearly been designed to dissipate a whooooole lotta heat. The new 7470s are hot chips to be sure, but even at 1.6GHz, our reports indicate that this is not dramatically worse than with the 1GHz 7450 used in today´s PowerMacs. This would seem to suggest, along with the new heatsink´s almost ridiculously large dimensions, that quad processors are on the horizon."
http://www.macosrumors.com/
