[dom0]

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.

[jandrese]

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.