@Specialblend:
Do you mean the difference from idle to load? If so I was answering the wrong thing. The 2/3*C is the difference from room temp to CPU temp on idle.
My CPU runs full load at 37*C so that makes it 13*C max difference from load CPU temp from room temp.
From what I have seen, you have it in for me when ever I mention temperatures. Maybe you do it for everyone else, I can't be bothered to look as like everyone else here I am not getting paid, I am doing it out of my personal choice because I enjoy helping people.