The MSI MEG Z890 ACE wins in 3 out of 14 comparable specs, with 9 ties. Its biggest advantage is M.2 Slots (50% better).
MPG X870E CARBON WIFI wins in 2 specs (MSRP: 50% better).
Recommendation
Choose MEG Z890 ACE if you want the best overall performance — especially m.2 slots.
Choose MPG X870E CARBON WIFI if msrp matters more to you.
