The MSI MAG B850 TOMAHAWK WIFI is the objective winner of this comparison, securing more wins across the evaluated specifications. Its most significant advantage over the alternative is the inclusion of PCIe x1 slots, which offer a 100% improvement in that specific category. While both motherboards share identical ratings in the majority of the tested fields, the B850 model provides a clear structural lead in expansion capabilities for users requiring additional peripheral connectivity.

Users who prioritize expansion via PCIe x1 slots should choose the MSI MAG B850 TOMAHAWK WIFI for its superior slot configuration. Conversely, the MSI MAG X870 TOMAHAWK WIFI is the better selection for those who require more storage capacity, as it offers a 33% advantage in the number of available M.2 slots. Selecting between these two components depends entirely on whether your build demands more peripheral expansion or increased high-speed internal storage density.