ViRGE
Elite Member, Moderator Emeritus
- Oct 9, 1999
- 31,516
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MS did a few different things for Win8. The big one is clock coalescing, which gets rid of the fixed 16.6ms kernel tick and allows the CPU to sleep for longer periods of time. Meanwhile it also supports Intel's s0ix power states, which will be a big deal for Haswell and beyond in further reducing idle power consumption.Better battery life? What does it actually do to achieve this and how much better is it?
http://blogs.msdn.com/b/b8/archive/2011/11/08/building-a-power-smart-general-purpose-windows.aspx
There will also be side benefits for Metro apps. Metro has very limited multitasking capabilities, so most tasks get suspended when you move away from the program. So for tablets (and any other devices primarily using Metro apps), there will be very little background overhead.