I have one of these...
My basket at Overclockers UK:
IIRC the temps were under 80c for 5Ghz but that was when it isn't as warm as it is now. Stock around 65 or so at most, a little vague about stock as I don't bother to monitor it, see no reason to.
Fan on cooler was always at a custom profile, more for noise limitation than performance.
And are those temps you quote during normal usage / gaming? I would say that is pretty much what I am seeing.