The ASUS ROG STRIX X670E-E GAMING WIFI wins in 8 out of 13 comparable specs, with 2 ties. Its biggest advantage is Max Memory Speed (173% better).
MAG B460 TOMAHAWK wins in 3 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose ROG STRIX X670E-E GAMING WIFI if you want the best overall performance — especially max memory speed.
Choose MAG B460 TOMAHAWK if pcie x1 slots matters more to you.
