ASRock - X870E Taichi vs ASUS - ROG Crosshair X870E Hero

The X870E Taichi edges ahead on the Mars Score (74.6 vs 70.7), but the 3.9-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the X870E Taichi if you care most about max memory. The biggest gaps in its favor are max memory.

Pick the ROG Crosshair X870E Hero if you care most about pcie slots. Its strongest claims are pcie slots.

Both ship with comparable m.2 slots, ram slots, wi-fi 7, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.