Join Date: Dec 2001
Location: San Jose, CA USA
Technically this isn't overclocking. Overclocking usually assumes that the chip is already running at spec.
The XScale chips are all capable of running at either 100, 200, 300 and witht he right voltages and the better package, 400 Mhz.
All that the people are doing on the PPCs are reprogramming the CPU to run at a faster (or slower) speed, but to still run in spec.
The power used is not significant. One test that I saw showed less than half an hour difference in battery life for 50% higher performance (200 to 300 Mhz).
What is really cool is the ability to underclock. If you slow the processor down to 100 Mhz while doing things like reading books or other tasks that don't use the processor so heavily, you can increase the battery life.
But in no case is anybody doing anything that will harm the processor or affect the stability of the unit.
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