The Gigabyte Z790 AORUS ELITE AX is the objective winner of this comparison, securing a higher number of superior specifications across the evaluated fields. Its most significant advantage is found in the PCIe x16 slots, where it offers a 200% improvement over the competition. This substantial lead in primary expansion capacity establishes the Gigabyte Z790 AORUS ELITE AX as the more robust choice for users requiring high-bandwidth connectivity for multiple high-performance expansion cards.

Users who prioritize primary slot capacity for graphics or high-speed add-in cards should select the Gigabyte Z790 AORUS ELITE AX. Conversely, the MSI PRO B850M-A WIFI is the better option for those who specifically require more PCIe x1 slots, as it provides a 100% advantage in that category. Choosing between these two motherboards depends entirely on whether your build configuration relies more heavily on primary x16 lanes or secondary x1 expansion connectivity.