90nm PowerMac G5s in March 2004?

Jun 11, 2003
Reaction score
Mount Vernon, WA
Your Mac's Specs
MacBook Pro 2.6 GHz Core 2 Duo 4GB RAM OS 10.5.2
Source: MacRumors.com

90nm PowerMac G5s in March 2004?
Wednesday November 19, 2003 06:20 PM

Appleinsider posted a small update today reporting that second generation PowerMac G5s would make an appearance by March 2004. The new machines are reported to have advanced features including 533 DDR II RAM support and up to 1.5GHz bus as well as the incorporation of 90nm G5s and "Power Tune" technology.

As previously reported, IBM will be presenting 90nm PowerPC 970 technology at the ISSCC in Feb 2004. First reference to "PowerTune" was seen in the advance program (PDF) where it is briefly described under "PowerTune: Advanced Frequency and Power Scaling on 64b PowerPC Microprocessor" (Page 59)

PowerTune is a power-management technique for a multi-gigahertz superscalar 64b PowerPC processor in a 90nm technology. This paper discusses the challenges and implementation of a dynamically controlled clock frequency with noise suppression as well as a synchronization circuit for a multi-processor system.

It's not completely clear how these 90nm G5 machines would fit with Appleinsider's previous claim that PowerMacs would see revisions in January 2004.

My Comments: March huh.. that's not too far away at all!

Shop Amazon

Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.