The ASRock X870 Steel Legend WiFi is the objective winner of this comparison, securing victories in ten out of thirteen evaluated specifications. Its most significant technical advantage is its maximum memory capacity, which is 167% higher than that of the alternative. By offering superior support for system memory, this motherboard provides a more robust foundation for high-capacity configurations compared to the Gigabyte B650M DS3H, which only leads in a small minority of the tested categories.

Users prioritizing high-capacity memory support should choose the ASRock X870 Steel Legend WiFi for their build. Conversely, the Gigabyte B650M DS3H is the better option for those who specifically require additional PCIe x1 slots, as it offers a 100% advantage in that area. Selecting between these two components depends entirely on whether your primary requirement is maximizing total system memory or expanding connectivity through specific expansion slots.