The ASUS ROG STRIX X870-A GAMING WIFI is the objective winner of this comparison, securing more individual specification victories than its counterpart. Its most significant technical advantage is the inclusion of PCIe x1 slots, which offer a 100% improvement in quantity compared to the alternative. This hardware configuration provides a distinct edge for users prioritizing expansion card support within their system architecture, establishing the motherboard as the more versatile option based on the evaluated technical criteria.

Choose the ASUS ROG STRIX X870-A GAMING WIFI if your build requires additional PCIe x1 slots for specialized expansion cards. Conversely, select the ASUS ROG STRIX Z790-E GAMING WIFI if your workflow demands superior connectivity, as it provides a 100% advantage in USB Type-C port availability. Your final decision should depend entirely on whether your specific peripheral and expansion needs align with the primary hardware strengths offered by these two distinct motherboard models.