3 ms·

for the simplest cases it will be about the same speed as avx2, but if you're trying to do anything fancy, the extra registers and instructions are a godsend.

• fooker 9mo ago
  Well, try it out for a realistic program. It makes for nice looking code, yes. But is often slower (for various reasons that are well understood by now).
  • adrian_b 9mo ago
    Please mention some of those reasons.