Sorry for the delay.
You can refer to our processor datasheet per generation under “Technologies”
Intel® Core™ Processors Technical Resources
You can also refer to these link that contains more information about AVX:
Intel® Advanced Vector Extensions (Intel® AVX)
Intel® AVX-512 Instructions
About the question: "Now I see a recent post about overheating during AVX, so I presume there is no pre-emptive slow down for AVX in i7"Can you please specify the processor you are referring to for this issue?
Bear in mind that there is another community that you can reach in case you have further inquiries regarding this:
Intel® Developer Zone Forums
After reviewing this case, I have noticed I am missing the processor model number. Do you happen to have the processor information?
Thank you for your time.