The ASRock X870 Steel Legend WiFi and the MSI MAG X870 TOMAHAWK WIFI are evenly matched, resulting in an objective tie across the majority of their specifications. While both motherboards offer comparable feature sets, the ASRock X870 Steel Legend WiFi holds a notable advantage in power delivery, featuring VRM phases that are 24% better than its counterpart. This distinction highlights a specific engineering priority for users focused on power stability and thermal management during intensive processing tasks.

Choose the ASRock X870 Steel Legend WiFi if your primary requirement is superior VRM phases for enhanced power delivery. Conversely, select the MSI MAG X870 TOMAHAWK WIFI if your build demands greater storage flexibility, as it provides 33% more M.2 slots than the alternative. Because both boards share identical performance in ten other categories, your final decision should rest entirely on whether you prioritize the power efficiency of the ASRock or the expanded storage capacity of the MSI.