Yeah I wonder how hot it gets when doing matrix multiplications with numpy. My i6700K starts throttling within a few seconds, with air cooling rated for 130w.
Heat dissipation has been problematic for Intel not just with the recent 2066 disaster but way before that. Most Haswell desktop processors are not that easy to keep from throttling. This is exaggerated by large temperature gradients of 15 °C and more across the cores, and obviously the hottest core is limiting overall performance.
The fact that you can significantly improve the thermals by delidding the processor and replacing the TIM is really an embarrassment for Intel, especially on >$200 chips.
I'm curious, does this mean that upgrading the cooling is an alternative to overclocking (better heat dissipation -> longer performance bursts) or is the effect negligible in practice?