To get the best and most accurate data about how much energy your computer platform is using during operation you need a hardware power meter, but not everyone can afford one. But what options do you have? The answer is to use a software power meter.
Intel® Power Gadget 2.0 is a software-based power estimation tool enabled for Second Generation Intel® Core™ processors.
Contributors: Seung-Woo Kim, Vardhan Dugar, Jun De Vega
Intel® Power Gadget is a software-based power estimation tool enabled for 2nd Generation Intel® Core™ processors or newer. It provides real-time processor package power information in watts using energy counters.