Why performance for this index-of-max function over many arrays of 256 bytes is so slow on Intel ...

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Why performance for this index-of-max function over many arrays of 256 bytes is so slow on Intel i3-N305 compared to AMD Ryzen 7 3800X?
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Thanks to all those great people for their contributions!

(stackoverflow.com/users/219153/paul-jurczak)Paul Jurczak
(stackoverflow.com/users/224132/peter-cordes)Peter Cordes
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c++ benchmarking avx2 vector-class-library simd



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Tags:
c++
benchmarking
avx2
vector-class-library
simd