But you haven't demonstrated that the SIMD approach produces a meaningfully different and more accurate approach than the naive method.
Just like processor magic made the theoretically more performant code perform worse, it's possible that the processor has facilities for bucketing the data such that results from such a dataset are the same or more accurate than the naive approach.
This is absolutely a situation that requires empirical testing.
Just like processor magic made the theoretically more performant code perform worse, it's possible that the processor has facilities for bucketing the data such that results from such a dataset are the same or more accurate than the naive approach.
This is absolutely a situation that requires empirical testing.