The ASUS ROG MAXIMUS Z890 EXTREME is the objective winner of this comparison, securing more total spec victories than its competitor. Its most significant technical advantage is the inclusion of USB Type-C connectivity, which offers a 300% improvement over the alternative. While the Gigabyte B850 GAMING X holds its own in specific areas, the ASUS ROG MAXIMUS Z890 EXTREME provides a more robust feature set across the majority of the evaluated hardware categories.

Users who prioritize high-speed modern peripheral connectivity should choose the ASUS ROG MAXIMUS Z890 EXTREME for its superior USB Type-C capabilities. Conversely, the Gigabyte B850 GAMING X is the better option for builders who require extensive legacy storage support, as it provides a 100% advantage in available SATA ports. Selecting between these two motherboards depends entirely on whether your build demands advanced external interface speeds or a higher capacity for internal drive connections.