The ASUS ROG STRIX Z890-E GAMING WIFI is the objective winner of this comparison, securing victory in eight out of thirteen evaluated specifications. Its most significant advantage over the ASRock B550 Steel Legend is the inclusion of M.2 slots, which offer a 133% increase in capacity. This substantial lead in storage connectivity establishes the ASUS ROG STRIX Z890-E GAMING WIFI as the superior option for users prioritizing modern expansion capabilities and high-density storage configurations.

Choose the ASUS ROG STRIX Z890-E GAMING WIFI if your build requires extensive M.2 storage support for high-speed data access. Conversely, the ASRock B550 Steel Legend remains a viable alternative for users who specifically require more PCIe x1 slots, where it maintains a 100% advantage over the competitor. Select the ASRock B550 Steel Legend if your system architecture relies on the specific expansion utility provided by those additional PCIe slots rather than modern storage density.