> There is a neat "The machine
> isn't doing anything. Setting CPU speed to 10Mhz" type of thing. And, as
> anyone that remembers that "as you double CPU speed, you square power
> consumption will tell you", that means good things for laptops & portable
Power consumption is directly proportional to the clock speed,
not the square of the speed. It _is_ proportional to the
square of the _voltage_.
In fact, they mentioned this formula (which is way simplified):
P is proportional to C * f * V^2
where C is capacitance (which is proportional to transistor size),
f is clock speed and V is voltage.
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