The Gigabyte Z790 AORUS ELITE AX is the objective winner of this comparison, securing a higher count of superior specifications across the evaluated fields. Its most significant advantage over the ASRock B850M PG Riptide WiFi is its PCIe x16 slot configuration, which offers a 200% improvement in capacity. This hardware superiority makes the Gigabyte board the more robust choice for users requiring extensive expansion capabilities for high-performance add-in cards.

Users prioritizing maximum expansion potential for graphics or high-bandwidth peripherals should select the Gigabyte Z790 AORUS ELITE AX for its superior PCIe x16 slot count. Conversely, the ASRock B850M PG Riptide WiFi is the appropriate choice for those who specifically require a higher density of PCIe x1 slots, as it provides a 100% advantage in that specific category. Your final decision should depend entirely on whether your build demands primary slot bandwidth or secondary expansion connectivity.