The MSI MAG B860 TOMAHAWK WIFI is the objective winner of this comparison, securing more individual specification victories than its competitor. While both boards share several identical features, the MSI MAG B860 TOMAHAWK WIFI holds a significant lead in connectivity capacity, offering a 100% advantage in available PCIe x1 slots compared to the ASUS ROG STRIX Z790-E GAMING WIFI. This makes the MSI board the superior choice for users prioritizing expansion options for smaller peripheral cards.

Users who require maximum expansion for multiple high-bandwidth devices should select the ASUS ROG STRIX Z790-E GAMING WIFI, as it provides a 50% advantage in PCIe x16 slots. Conversely, the MSI MAG B860 TOMAHAWK WIFI is the better option for builders who need to accommodate a higher quantity of smaller expansion cards. Choosing between these motherboards depends entirely on whether your specific build configuration demands more primary slot bandwidth or a higher count of secondary PCIe slots.