Powerbooks and Variable Timing - MacRumors
Skip to Content

Powerbooks and Variable Timing

PowerPage.org claims that upcoming Powerbook revisions may employ new motherboard technology involving variable timing to extend battery life:


    Prototypes have been seen sporting a new "variable timing bus and processor" in which the processor and the bus speed are governed by processing demand, a sort of high/low mode which effectively doubles battery life for such mundane tasks as watching DVDs or listening to music CDs.

This is presumably distinct from the processor cycling advantages that current laptops already perform to increase battery life.

Powerpage continues to maintain a January release of new Powerbooks.

Popular Stories

Apple Watch Ultra 2 Black Titanium

New Apple Watch Series 12 and Apple Watch Ultra 4 Features Revealed

Sunday August 30, 2026 7:54 am PDT by
Bloomberg's Mark Gurman today further outlined what to expect from the Apple Watch Series 12 and Apple Watch Ultra 4 set to be unveiled on September 9. While it was initially rumored that Touch ID may be coming to the Apple Watch this year, Gurman reiterated that he does not expect the Series 12 or Ultra 4 to have any major design changes compared to the current Series 11 and Ultra 3 models. ...
Mac mini vs Studio Feature Sans Text 1

Apple Caught Off Guard by AI Demand for Mac Mini and Mac Studio

Sunday August 30, 2026 8:52 am PDT by
Apple's unusually timed announcement of new Mac mini and Mac Studio models this week was driven by unexpectedly strong enterprise appetite for AI hardware, according to The Information. Apple normally releases new Mac models in the autumn, closer to October or November, making this week's announcement unusually early, falling just before the anticipated arrival of new iPhone models. The...
Mac Studio Feature

Apple Seemingly Made a Mistake When Announcing the New Mac Studio

Monday August 31, 2026 11:19 am PDT by
Apple's press release for the new Mac Studio with M5 Max and M5 Ultra chips last week initially stated that the computer had "next-generation SSD architecture built on PCIe Gen 6." However, as spotted by the French blog MacGeneration, Apple removed the PCIe 6.0 mention from the announcement shortly after it was published. The press release still mentions that the new Mac Studio has a...