They are exactly the same except that the Ultimate has an Aquantia network controller and chrome colored power and reset buttons that are missing on the regular Taichi.
In fact, aside from those two things, our review specifically states :
Panning out, we see nothing to surprise readers of the former
Z390 Taichi review: meaning, they are the same board with only a different network controller and a couple of chrome buttons. There is really nothing "ultimate" about it. It doesn't even have an improved VRM configuration, which is something you'd expect when you pay more for a higher tiered board.
Compared to the Aorus master, I'd go for the Aorus master, or the regular Taichi. There is nothing about the Taichi master that would make me look at that board in a favorable light over these others.
This would be much better than any of those and is only a few bucks more than the Taichi Ultimate or Aorus master.
PCPartPicker part list /
Price breakdown by merchant
Motherboard: Asus - ROG MAXIMUS XI HERO (WI-FI) ATX LGA1151 Motherboard ($284.70 @ Newegg Business)
Total: $284.70
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-04-17 23:07 EDT-0400