ASUS - ROG Crosshair X870E Hero vs MSI - MPG X870E Carbon WiFi

These two are nearly even on the Mars Score (70.7 vs 69.1). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.

Pick the ROG Crosshair X870E Hero if you care most about m.2 slots / pcie slots. The biggest gaps in its favor are m.2 slots, pcie slots. The single most decisive one: M.2 slots — 1.00 more. 5 vs 4.

Pick the MPG X870E Carbon WiFi if you care most about max memory. Its strongest claims are max memory. The single most decisive one: Max memory — 33.33% more. 256 GB vs 192 GB.

Both ship with comparable ram slots, wi-fi 7, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.