never heard such a shit - intel cpus arent "better built" their internal architecture is designed for higher temperaturey because intel's cpus are consuming much more power than amd's. has nothing to do with the way they build them (intels are even built smaller than amds, so that they dont become hotter than they currently are).
and the "optimum heat" part - did you ever read about liquid nitrogen cooled systems?
Temps were around 2°c idle and 15°c load
also change wallpaper more often please
and the "optimum heat" part - did you ever read about liquid nitrogen cooled systems?