The ASRock X870 Steel Legend WiFi is the objective winner of this comparison, securing a lead in nine out of fourteen evaluated specifications. Its most impactful advantage is the inclusion of four memory slots, which represents a 100% increase in capacity compared to the alternative. By offering double the memory slots, this motherboard provides significantly more flexibility for system memory expansion and configuration than the Gigabyte B850I AORUS PRO.

Users prioritizing system expandability and higher total memory capacity should choose the ASRock X870 Steel Legend WiFi for their build. Conversely, the Gigabyte B850I AORUS PRO is the better selection for those who specifically require a 3% higher maximum memory speed. While the former excels in slot availability, the latter offers a marginal advantage in raw memory frequency, making it the preferred option for users focused on that specific performance metric.