The Gigabyte Z890 AORUS MASTER is the objective winner of this comparison, securing more individual specification victories than the ASRock X870 Steel Legend WiFi. While both motherboards share identical ratings across the majority of their technical fields, the Gigabyte Z890 AORUS MASTER provides a significant hardware advantage by offering 100% more PCIe x1 slots. This expansion capability serves as the most impactful differentiator between the two boards when evaluating their overall connectivity and layout configurations.

Users who prioritize maximizing their expansion options should select the Gigabyte Z890 AORUS MASTER to take advantage of its superior PCIe x1 slot count. Conversely, the ASRock X870 Steel Legend WiFi is the better choice for budget-conscious builders, as it holds a 46% advantage in MSRP. Choosing between these two components depends entirely on whether your build requires additional expansion slots or if you prefer the more favorable pricing offered by the ASRock alternative.