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> It also drops AVX-512 support entirely

I wonder if Zen 4 will have AVX-512 support. If so, given that it will use a 5nm process instead of this processor's 7nm process, it will absolutely blow it out of the water.

It would be somewhat ironic to see Intel being trounced by an instruction set they invented and then stopped using!




Zen 4 [so far] from all the rumors actually seems to be competing against Intel 13th gen. (Both coming Q4 2022)


Please, no.

AVX-512 was a mistake, causing Intel lots of issues for the benefit of a new benchmark. It heats up and clocks down the chip for other work. And it takes up too much space.

Again, please, no.


Previous iterations heated up the processor and forced it to clock down because Intel was stuck on the 14nm process.

Intel developed the instruction set and expected to rapidly shrink the die to 10nm and then 7nm, which would have fixed the power draw issues. The shrink never happened, and this then made AVX-512 look bad.

It's not AVX-512 that's at fault, it's the manufacturing process. Fix the process, and the instruction set can shine.

Many people writing vector code by hand say that they much prefer AVX-512 over its predecessors because it is complete, flexible, and powerful.

The only reason Intel didn't lose every benchmark against AMD recently is because for some workloads AVX-512 doubles throughput despite being hamstrung by the power draw and overheating problems.

A 5nm chip using AVX-512 might only need to clock down 10-20%, or not at all. Or just use turbo for a shorter period.


The manufacturing process would alter the whole chip. AVX-512 ratio would still be the same, still lead to similar issues. It was a mistake. I would not be surprised to see them undo it in same chips to get a better big.LITTLE design out since Atom does not have it.




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