The ASRock X870 Steel Legend WiFi wins in 9 out of 13 comparable specs, with 2 ties. Its biggest advantage is Max Memory (300% better).
B660M DS3H DDR4 wins in 2 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose X870 Steel Legend WiFi if you want the best overall performance — especially max memory.
Choose B660M DS3H DDR4 if pcie x1 slots matters more to you.
AI Versus Verdict
The ASRock X870 Steel Legend WiFi is the objective winner of this comparison, securing a lead in nine out of thirteen evaluated specifications. Its most significant advantage is its maximum memory capacity, which is 300% higher than that of the alternative. This substantial increase in supported memory provides a clear technical edge for the ASRock X870 Steel Legend WiFi, establishing it as the superior option based on the total count of winning specifications.
Users requiring extensive memory support should choose the ASRock X870 Steel Legend WiFi to leverage its 300% capacity advantage. Conversely, the Gigabyte B660M DS3H DDR4 is the better selection for those who prioritize expansion, as it offers a 100% advantage in the number of available PCIe x1 slots. Selecting between these two motherboards depends entirely on whether your specific build demands higher memory ceilings or additional peripheral connectivity through dedicated expansion slots.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.