This is all well above my head
I'm not a sparky but I have something that may help. Its a PDF titled:
"Modeling and Analyzing CPU Power and Performance: Metrics, Methods, and Abstractions"
written by
Pradip Bose
Margaret Martonosi
David Brooks
I didn't understand it myself but I can send it to any of you if you wish or you could search for it on google as that is where I got it from