The Gigabyte X670E AORUS MASTER is the objective winner of this comparison, securing victory in seven of the fourteen evaluated categories. Its most significant technical advantage over the Gigabyte B850 GAMING X is the inclusion of USB Type-C ports, which represent a 100% improvement in that specific connectivity metric. While the Gigabyte B850 GAMING X holds its own in four categories, it ultimately falls behind the more robust feature set offered by the Gigabyte X670E AORUS MASTER.

Users who prioritize high-speed peripheral connectivity and advanced interface options should choose the Gigabyte X670E AORUS MASTER for their build. Conversely, the Gigabyte B850 GAMING X is the better selection for those who specifically require a higher quantity of PCIe x1 slots, as it provides a 100% advantage in that area. Selecting between these two motherboards depends entirely on whether your workflow demands superior USB Type-C integration or expanded PCIe x1 expansion capabilities.