The ASRock X870 Steel Legend WiFi is the objective winner of this comparison, securing more individual specification victories than the ASRock H670 Steel Legend. While both boards share several identical features, the ASRock X870 Steel Legend WiFi provides a significant advantage in memory capacity, offering 100% more maximum memory support than its counterpart. This substantial increase in total RAM potential serves as the most impactful technical improvement between the two motherboards.

Users who prioritize high-capacity memory configurations for demanding workloads should choose the ASRock X870 Steel Legend WiFi to take advantage of its superior maximum memory support. Conversely, the ASRock H670 Steel Legend remains the better option for builders who require additional expansion capabilities, as it provides 100% more PCIe x1 slots. Selecting between these two components depends entirely on whether your specific system build requires greater memory headroom or increased connectivity for peripheral expansion cards.