> the cost in energy is directly proportionate to the clock frequency Approximately true at lower frequencies, less accurate at higher frequencies. Voltage mu

> the cost in energy is directly proportionate to the clock frequency Approximately true at lower frequencies, less accurate at higher frequencies. Voltage must increase to reduce the transition times, at higher frequencies. You can see this in any spec sheet. http://physics.stackexchange.com/questions/34766/how-does-power-consumption-vary-with-the-processor-frequency-in-a-typical-comput http://physics.stackexchange.com/questions/34766/how-does-po...