The ASUS ROG STRIX B850-F GAMING WIFI is the objective winner of this comparison, securing more total spec victories across the evaluated categories. Its most significant technical advantage is the inclusion of PCIe x1 slots, which offer a 100% improvement in capacity compared to the alternative. This hardware configuration provides a distinct edge for users prioritizing expansion card connectivity and modern interface support within their system build.

Choose the ASUS ROG STRIX B850-F GAMING WIFI if your primary requirement is maximizing PCIe x1 slot availability for additional expansion cards. Conversely, select the Gigabyte Z790 AORUS ELITE AX if your storage needs rely heavily on legacy connectivity, as it provides a 200% advantage in available SATA ports. Your final decision should depend entirely on whether your specific build configuration demands more expansion slots or a higher density of SATA storage connections.