The MSI MEG Z890 ACE is the objective winner of this comparison, securing more individual specification victories than its competitor. While both motherboards share a significant number of identical features, the MSI MEG Z890 ACE holds a decisive lead in connectivity, offering a 50% advantage in USB Type-C capabilities. This superior port density serves as the most impactful differentiator between the two boards, providing greater flexibility for high-speed peripheral integration compared to the ASUS ROG CROSSHAIR X870E HERO.

Users who prioritize maximum connectivity and modern interface support should choose the MSI MEG Z890 ACE to take advantage of its superior USB configuration. Conversely, the ASUS ROG CROSSHAIR X870E HERO is the better option for budget-conscious builders, as it maintains a 30% advantage in MSRP. Selecting between these two components depends entirely on whether your build requires the expanded peripheral support of the MSI board or the cost efficiency offered by the ASUS alternative.