Can anyone recommend a good, and preferably free program that would allow to measure how much power (in watts) my system using while performing various tasks? I haven't gotten around to downloading msi afterburner yet and i'm not sure if that will help me with this? Isn't there another program like afterburner by asus that also measures gpu performance?.... I was recommended to use cpu-z.... is that good for measuring cpu performance?... Any stress testing and bench-marking software recommendations would be appreciated as well.