Question

10) Dynamic Voltage and Frequency Scaling (DVFS) is a technique widely used to lower power, especially in large datacenters. In order to conserve electricity both the frequency and voltage of the processor are reduced. If a processor using 200W of power running at 2V and 4 GHz is reduced to 1.5V at 2GHz how much power in Watts will be saved? [Note: Assume 100% of power is dynamic – ignore leakage power] Hint – see L1 slide 21, the capacitance if a function of the chip and will not change with voltage or freq.

Answer 1