The MSI MAG Z890 TOMAHAWK WIFI is the objective winner of this comparison, securing victory in eight of the thirteen evaluated specifications. Its most significant advantage over the ASRock B760M PG Lightning is its superior configuration of PCIe x16 slots, which provides a 200% increase in capacity. While the ASRock B760M PG Lightning holds a 100% advantage in the number of PCIe x1 slots, it ultimately falls behind in the majority of the measured technical categories.

Users requiring maximum expansion capabilities for high-bandwidth hardware should choose the MSI MAG Z890 TOMAHAWK WIFI for its dominant PCIe x16 slot count. Conversely, the ASRock B760M PG Lightning is the appropriate selection for builders who specifically prioritize a higher number of PCIe x1 slots for their system configuration. Selecting between these two motherboards depends entirely on whether your build necessitates the primary expansion advantage offered by the MSI board or the specific slot layout of the ASRock model.