The Gigabyte Z890 AORUS MASTER is the objective winner of this comparison, securing victory in ten out of fourteen evaluated categories. Its most significant technical advantage is its maximum memory capacity, which is 100% higher than that of the alternative. While the Gigabyte B650 AORUS ELITE AX falls behind in total spec wins, it maintains a notable lead in affordability, offering an MSRP that is 60% better than the higher-end model.

Users prioritizing maximum memory support and superior overall specifications should select the Gigabyte Z890 AORUS MASTER for their build. Conversely, the Gigabyte B650 AORUS ELITE AX is the logical choice for budget-conscious consumers who prefer to allocate their funds elsewhere while still obtaining a functional motherboard. Choosing between these two depends entirely on whether your primary requirement is the expanded memory headroom of the former or the significant cost savings provided by the latter.