The ASRock X870E Taichi and the MSI MPG X870E CARBON WIFI are objectively tied, as both motherboards secure an equal number of specification victories across the evaluated categories. The most impactful advantage for the ASRock X870E Taichi is its PCIe x1 slot configuration, which offers a 100% improvement over the competition. Conversely, the MSI MPG X870E CARBON WIFI provides a significant edge in connectivity, featuring a 50% advantage in USB Type-C port availability compared to its counterpart.

Users who prioritize expansion capabilities for additional add-in cards should choose the ASRock X870E Taichi for its superior PCIe x1 slot count. Those who require extensive high-speed peripheral connectivity should opt for the MSI MPG X870E CARBON WIFI due to its increased USB Type-C capacity. Since both boards perform identically across the remaining majority of specifications, the final selection depends entirely on whether your specific build requires more internal expansion slots or additional external port options.