Your example fails to point out why AMD and Apple are able to compete despite having smaller vector widths, and no it isn't because "SIMD just really doesn't ma

Your example fails to point out why AMD and Apple are able to compete despite having smaller vector widths, and no it isn't because "SIMD just really doesn't matter". It is because AMD and Apple have wider architectures with more vector ports, they can execute 3 or 4 of these instructions per cycle while Intel can only execute 2(or even 1 in some cases with avx512). AMD has already said they will be adding AVX512 to the next zen, so they apparently think SIMD matters. Apple will almost certainly implement SVE, they would be stupid to not do so, and they aren't stupid.