The Tegra 3 processor - actually has 5 cores.  They have 1 core, that 
operates at a lower clock-speed, and is used  for background stuff.  Then 
they spin up the other cores when necessary (for the more resource 
intensive stuff).

That takes this concept a step further.

On Tuesday, April 3, 2012 10:01:19 AM UTC-7, bob wrote:
>
> I noticed that, on Android, the CPU clock rate changes a lot.  For 
> instance, it may drop from 1 GHz to 100 MHz if not much is going on.  Is 
> this 
>
> an Android thing, or do desktops and other systems do this too?
>
>

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