The ASUS ROG CROSSHAIR X870E HERO wins in 9 out of 13 comparable specs, with 2 ties. Its biggest advantage is M.2 Slots (150% better).
B660M DS3H DDR4 wins in 2 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose ROG CROSSHAIR X870E HERO if you want the best overall performance — especially m.2 slots.
Choose B660M DS3H DDR4 if pcie x1 slots matters more to you.
AI Versus Verdict
The ASUS ROG CROSSHAIR X870E HERO is the objective winner of this comparison, securing a lead in nine out of thirteen evaluated specifications. Its most significant advantage is the inclusion of M.2 slots, which provides a 150% improvement over the alternative. This substantial increase in storage connectivity capacity establishes the ASUS ROG CROSSHAIR X870E HERO as the superior option for users requiring extensive high-speed drive support for their system builds.
Users who prioritize maximum storage expansion should select the ASUS ROG CROSSHAIR X870E HERO for its superior M.2 slot count. Conversely, the Gigabyte B660M DS3H DDR4 is the appropriate choice for those who specifically require more PCIe x1 slots, as it offers a 100% advantage in that category. Choosing between these two motherboards depends entirely on whether your build configuration relies more heavily on modern M.2 storage or legacy PCIe x1 expansion cards.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.