The MSI MAG Z790 TOMAHAWK WIFI is the objective winner of this comparison, securing five specification victories compared to the single win for the MSI MAG X670E TOMAHAWK WIFI. The most impactful advantage for the Z790 variant is its superior connectivity, offering 75% more SATA ports than its counterpart. This significant lead in storage interface capacity makes it the more versatile option for users requiring extensive drive configurations for their desktop builds.

Users prioritizing high-capacity storage arrays should select the MSI MAG Z790 TOMAHAWK WIFI for its expanded SATA port count. Conversely, the MSI MAG X670E TOMAHAWK WIFI is the better choice for those who prioritize expansion card support, as it provides a 50% advantage in PCIe x16 slots. Choosing between these two motherboards depends entirely on whether your specific build requirements lean toward additional internal storage drives or increased capacity for peripheral expansion cards.