The MSI MAG B560 TOMAHAWK WIFI wins in 6 out of 13 comparable specs, with 6 ties. Its biggest advantage is PCIe x16 Slots (100% better).
B660M DS3H DDR4 wins in 1 spec (MSRP: 47% better).
Recommendation
Choose MAG B560 TOMAHAWK WIFI if you want the best overall performance — especially pcie x16 slots.
Choose B660M DS3H DDR4 if msrp matters more to you.
