Noob question! What about AVX-512 makes it unique to assembly programmers? I'm just dipping my toes in, and have been doing some chemistry computations using f32x8, Vec3x8 etc (AVX-256). I have good workflows set up, but have only been getting 2x speedup over non-SIMD. (Was hoping for closer to 8). I figured AVX-512 would allow f32x16 etc, which would be mostly a drop-in. (I have macros to set up the types, and you input num lanes).

SIMD only helps you where you're arithmetic-limited; you may be limited by memory bandwidth, or perhaps float division if applicable; and if your scalar comparison got autovectorized you'd have roughly no benefit.

AVX-512 should be just fine via intrinsics/high-level vector types, not different from AVX2 in this regard.