The ASUS ROG MAXIMUS Z890 HERO is the objective winner, securing victory in ten out of thirteen comparable specifications. Its most impactful advantage is a 167% increase in maximum memory capacity compared to the ASRock B760M PG Lightning. While the latter holds a 100% advantage in the number of PCIe x1 slots, the former dominates the overall feature set, providing significantly higher headroom for system memory configurations and advanced hardware connectivity.

Choose the ASUS ROG MAXIMUS Z890 HERO if your primary requirement is high-capacity memory support for demanding professional workloads or future-proof system expansion. Conversely, select the ASRock B760M PG Lightning if your specific build relies on the increased availability of PCIe x1 slots for specialized expansion cards. The decision rests on whether your priority is maximizing total system memory or utilizing the specific physical slot layout provided by the smaller board.