The ASUS ProArt X870E-CREATOR WIFI wins in 7 out of 14 comparable specs, with 3 ties. Its biggest advantage is LAN (300% better).
MAG Z790 TOMAHAWK WIFI wins in 4 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose ProArt X870E-CREATOR WIFI if you want the best overall performance — especially lan.
Choose MAG Z790 TOMAHAWK WIFI if pcie x1 slots matters more to you.
