The ASRock B850 Steel Legend WiFi is the objective winner of this comparison, securing more total specification victories across the evaluated fields. Its most impactful advantage is the inclusion of USB Type-C connectivity, which offers a 100% improvement over the alternative. By leading in the majority of categories, this motherboard establishes itself as the more versatile option for users prioritizing modern peripheral support and overall feature density within this specific hardware lineup.

Choose the ASRock B850 Steel Legend WiFi if your workflow relies heavily on high-speed USB Type-C connectivity for external devices and data transfers. Conversely, select the MSI MAG X670E TOMAHAWK WIFI if your build requires additional expansion capabilities, as it provides a 100% advantage in available PCIe x1 slots. Your final decision should depend on whether you prioritize the superior peripheral interface of the former or the greater expansion slot count of the latter.