The ASRock B850 Steel Legend WiFi is the objective winner of this comparison, securing more individual specification victories than its counterpart. Its most significant advantage is a 100% increase in maximum memory capacity, providing a substantial edge for memory-intensive tasks. While both motherboards share several identical features, the ASRock B850 Steel Legend WiFi offers superior headroom for system RAM, making it the more capable choice for users prioritizing high-capacity memory configurations.

Users who require extensive memory support should choose the ASRock B850 Steel Legend WiFi to take advantage of its doubled capacity. Conversely, the ASRock H670 Steel Legend is the better option for those who prioritize expansion, as it offers a 100% advantage in the number of available PCIe x1 slots. Selecting between these two components depends entirely on whether your specific build requirements lean toward higher total system memory or a greater number of peripheral expansion slots.