The ASRock Z890 Taichi wins in 7 out of 14 comparable specs, with 5 ties. Its biggest advantage is M.2 Slots (200% better).
PRO B850M-A WIFI wins in 2 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose Z890 Taichi if you want the best overall performance — especially m.2 slots.
Choose PRO B850M-A WIFI if pcie x1 slots matters more to you.
