Intel Corp (INTC)

[Saturn V]

15% reduction in frequency = 50% reduction in power.

I do not completely understand that.

A process tweak to speed up the circuit by reducing transistor threshold would definitely increase the power exponentially.

But for the same process the relationship P = Cfv2, should hold. This implies a linear increase of power with speed. Unless the chip operates in a mode where the internal nodes do not finish charging or discharging during one clock cycle !