Tomorrow is gonna be nuts...Flurry of unconfirmed rumorsAll 14nm and below tools banned from China?All NAND/DRAM tools banned from China?All high end AI chips banned from China?High end DC CPUs like Genoa banned from China?All China fabless firms banned from EUV nodes?— Dylan Patel (@dylan522p) October 7, 2022
One of several articles on this:
https://www.reuters.com/article/usa-china-supercomputers-idCAKBN2R223O
Most gear is still air-cooled but that’s changing pretty quickly
Liquid cools like 3000x more efficiently than air, something like that
Also see ideas like this: https://www.ibm.com/blogs/research/2017/08/beat-heat-3d-chip-stacks-icecool/
I think IBM still has a 5Ghz mainframe chip out there but since multicore era frequency is mostly ~2-3 Ghz