The MSI MAG X870 TOMAHAWK WIFI is the objective winner of this comparison, securing more total spec victories than its counterpart. Its most significant advantage is the inclusion of M.2 slots, which offer a 100% improvement over the MSI PRO B850M-A WIFI. This substantial increase in storage connectivity provides a clear edge for users who prioritize high-capacity or multi-drive NVMe configurations within their system builds.

Users who require extensive high-speed storage expansion should choose the MSI MAG X870 TOMAHAWK WIFI for its superior M.2 slot count. Conversely, the MSI PRO B850M-A WIFI is the better option for those who specifically need additional PCIe x1 slots, as it provides a 100% advantage in that category. Selecting between these two motherboards depends entirely on whether your build prioritizes modern storage density or the specific expansion capabilities offered by the smaller PCIe slots.