Does anybody need those 5.3 GHz at 300 watts? I believe the next big thing is "massively parallel distributed processing": thousands or maybe even millions of tiny processing units with their own memory and reasonable set of instructions run in parallel and communicate with each other over some sort of high bandwidth bus. It's like a datacenter on a chip. A bit like GPU, but bigger. I think this will take ML and various number crunching fields to the next level.
Those are desktop processors. Most applications won’t even use 64 cores. But I agree this is this future, but today faster single core will speed up your day a lot.