IBM on PowerPC 970MP Power Savings - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

IBM on PowerPC 970MP Power Savings

ZDNet and eWeek report on a presentation by Norman Rohrer, and IBM engineer at the Fall Processor Forum in San Jose.

Roher discussed the IBM PowerPC 970MP which is being used by Apple in the latest round of PowerMac revisions. IBM describes the new chip as a "low-power, high-performance" processor.

The 970MP houses two processor cores each with its own CPU, AltiVEC unit and 1MB of cache. The previous PowerPC 970 (G5) processor only had a single core. In addition, the new 970MP can shut down one of the two cores and further reduce power consumption by reducing its frequency. Peak consumption is described as 100W which can be reduced to 40W.

Even with such power savings modes, it seems unlikely that the 970MP will approach the anticipiated plans from Intel to produce lower power consumption chips. Intel's future Performance per Watt roadmaps were cited as reasons for Apple's switch to Intel which is planned to begin in 2006.

Buyer's Guide: Mac Pro (Don't Buy)
Related Forums: Mac Pro, PowerPC Macs

Popular Stories

apple silicon feature joeblue

Apple Reportedly Worked on Two 'Extreme' Chips

Sunday July 19, 2026 8:51 am PDT by
Apple once developed "M2 Extreme" and "M3 Extreme" chips for the Mac Pro, but it decided not to release them, according to Bloomberg's Mark Gurman. He first reported on this topic in 2022, and he touched on it again in his Power On newsletter today. "Extreme" chips would have had twice as many CPU and GPU cores as Apple's "Ultra" chips. "The idea was to offer twice as many graphics and...
Mac Pro Feature Teal

Apple Shelved Two Mac Pro Models, Including an Intel-Based One

Monday July 20, 2026 6:30 am PDT by
Apple developed two Mac Pro models in recent years that never made it to market, according to Bloomberg's Mark Gurman. In his latest "Power On" newsletter, Gurman revealed that Apple internally developed two unreleased Mac Pro projects codenamed J170 and J190 before ultimately discontinuing the machine altogether. As for new Mac Pro hardware, there were two additional models developed by...
Apple Event Logo

Apple Working on All-New Operating System

Wednesday July 29, 2026 11:39 am PDT by
Apple is developing an all-new operating system that is essentially a mix of tvOS, watchOS, and iOS, according to Bloomberg's Mark Gurman. In a report this week, he said the operating system will feature a grid of icons, widgets, and apps, along with customizable clock faces. The new software platform is intended for Apple's long-rumored smart home hub. With built-in facial recognition,...

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors