So GN brought more info on the MSI X570 Tomahawk, stating that it uses 60A powerstages. Now I don't know if it's dumb Dr.Mos or smart powerstages (possibly just IR3555 found on the Unify and Ace), but that alone means even if it's only a fat 4 phase for Vcore, it will already beat everything they have below the Unify. There is indeed 4 more inductors on the smaller heatsink so it could be something as big as a doubled 5 phase (so 10 phase), just below what the Unify carries.

Now it will really come down to how good the heatsinks are. They honestly don't look as good as the B450 board, but you also dont need that good of a heatsink when you improve the VRM itself so, we'll see.