> is it really just a matter of increased number of execution units running at once causing weird power and heat issues? That's been the root cause of all the

> is it really just a matter of increased number of execution units running at once causing weird power and heat issues? That's been the root cause of all the previous AVX weirdness I'm aware of. It's probably the case for these Threadrippers, too. Modern CPUs have very high power density and run at pretty low voltage, which results in insane current delivery requirements.