Source for Zen3 having 4x per cycle? That's impressive and I'd like to read more about it. Another comment mentioned 4, 2 of which are fma. Works this imply th

Source for Zen3 having 4x per cycle? That's impressive and I'd like to read more about it. Another comment mentioned 4, 2 of which are fma. Works this imply that a matmul kernel for zen3 should have a 2:1 ratio of fmas to mul+add?