Apple Computer Inc. on Wednesday announced three new dual-processor Power Mac G5 configurations, with the fastest model topping out at 2.5GHz. The new high-end systems miss the 3GHz mark that Apple CEO Steve Jobs said the company would achieve at last year's Worldwide Developers Conference, but Tom Boger, Apple's Director of Power Mac Product Marketing said it came down to a technology challenge that was bigger than they expected. Boger also said today that users shouldn't expect to see a PowerBook G5 before the end of the year because of the challenges of putting the G5 in a small enclosure.
PowerBook G5 & iMac
Anyone that has seen the heatsink from a Power Mac G5 knows that it would not fit in a portable computer. This is the challenge that faces Apple as it tries to move its pro product line to the new fast processor technology.
"I think it's important to realize that the technical challenges are not trivial putting that G5 in a PowerBook or anything else and not to expect a G5 anytime soon in a PowerBook -- certainly not before the end of the year," said Boger.
While Boger didn't give a timeframe for an iMac G5, he did say the company faced similar challenges getting a G5 to work with their consumer desktop.
"It's the same story -- the challenges are obvious when you look at the G5 and the size of the heatsinks and the enclosure; that would be a heck of a challenge as well."
No 3GHz G5 anytime soon
When Apple CEO took the stage at last year's Worldwide Developer's Conference, he wowed the attendees with the new Power Mac G5 dual 2GHz design and technology. Jobs further excited the crowd when he said that Apple would release a 3GHz model within a year -- with two weeks to go before that deadline, Boger said Apple will not meet the 3GHz promise.
"It's actually quite simple," said Boger. "When we made that prediction, we just didn't realize the challenges moving to 90 nanometer would present. It turned out to be a much bigger challenge than anyone expected."
"All-in-all, no we are not getting to 3GHz anytime soon, but what we are announcing today is a very significant upgrade in performance and its something that are customers will be very happy with."
How the new units stack up
All systems share some common traits: an 8x speed DVD-R/CD-RW "SuperDrive," a single Firewire 800 port, two FireWire 400 ports (one in back, one in front), three USB 2.0 ports (two in back, one in front), Gigabit Ethernet and 56K modem, AGP 8x Pro graphics card slot, ADC and DVI video interfaces. They're ready for AirPort Extreme wireless networking cards and can be ordered with internal Bluetooth support as well. Analog and optical digital audio inputs and outputs are supported as well.
The low-end Power Mac G5 sports dual 1.8GHz processors and a frontside bus clocked at 900MHz per processor. The system comes equipped with 256MB of DDR SDRAM memory expandable to 4GB, and an 80GB Serial ATA hard drive. It ships with an Nvidia GeForceFX 5200 Ultra graphics card equipped with 64MB of memory, and it's also equipped with three full-length 33MHz 64-it PCI slots for further expansion. It costs US$1,999 -- $200 higher than the previous low-end model, which features a single processor configuration.

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