The 512 bit registers are the least important part of AVX-512. The much more important parts are the 32 registers, mask registers (these are great for quicksort

The 512 bit registers are the least important part of AVX-512. The much more important parts are the 32 registers, mask registers (these are great for quicksort), compressed displacement (which shrinks the instruction size for unrolled code), and a bunch of other goodies.