https://www.zhihu.com/question/277156338
https://pic1.zhimg.com/80/v2-d3ad81d1dde0af870750ba7b068684e2_hd.jpg
https://pic1.zhimg.com/80/v2-706653ef0813e65f38cf41d78e726a35_hd.jpg
https://pic3.zhimg.com/v2-fcdb810d02ab4ee7b306355b32511400_r.jpg
Cannonlake-UはAVX-512 FMAユニットが1コアあたり1個しかないのだ