The ASRock X870 Steel Legend WiFi is the objective winner of this comparison, securing a lead in seven out of fourteen evaluated categories. Its most significant technical advantage is its maximum memory capacity, which is 100% higher than that of the alternative. By outperforming the Gigabyte B550 AORUS PRO AC in a majority of the measured specifications, the ASRock X870 Steel Legend WiFi establishes itself as the more capable option for users prioritizing modern memory standards.

Users who require extensive RAM support for memory-intensive tasks should choose the ASRock X870 Steel Legend WiFi for its superior capacity. Conversely, the Gigabyte B550 AORUS PRO AC remains the preferred selection for those who specifically need additional expansion options, as it offers a 100% advantage in available PCIe x1 slots. Selecting between these two motherboards depends entirely on whether your build demands higher memory ceilings or increased connectivity for peripheral expansion cards.