The Gigabyte X670E AORUS MASTER is the objective winner of this comparison, securing victory in seven of the fourteen evaluated categories. Its most impactful advantage over the Gigabyte B850 GAMING X is the inclusion of USB Type-C ports, which offer 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 superior feature set provided by the Gigabyte X670E AORUS MASTER.

Users who prioritize modern peripheral connectivity and require the extensive feature set of the Gigabyte X670E AORUS MASTER should choose that board for their build. Conversely, the Gigabyte B850 GAMING X is the better selection for users 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 more USB Type-C ports or additional PCIe x1 expansion.