Well, I actually overclocked my notebook CPU, from 2.1GHz to 2.8Ghz. It runs very well, no crashes and no overheat, the cores rarely get to 60 celsius.
Maybe it’s because the airflow design is very good, its a Sager np5793. I have a cooling pad and watch over my temps on a second monitor but they have been very good even after playing lots of hours.