The ASUS ROG STRIX X870-A GAMING WIFI is the objective winner of this comparison, securing a lead in seven out of eleven evaluated specifications. Its most significant advantage is the inclusion of M.2 slots, which offer a 300% improvement over the alternative. This superior storage capacity makes the ASUS ROG STRIX X870-A GAMING WIFI the more robust option for users requiring extensive high-speed drive support for their system builds.

Choose the ASUS ROG STRIX X870-A GAMING WIFI if your primary requirement is maximizing internal storage expansion through its superior M.2 slot count. Conversely, the Gigabyte A620M DS3H is the better selection for users who specifically prioritize legacy connectivity, as it provides a 100% advantage in available PCIe x1 slots. Select the Gigabyte A620M DS3H only if your specific hardware configuration relies on those additional expansion slots rather than high-density storage.