The MSI MEG X870E ACE MAX is the objective winner of this comparison, securing more individual specification victories than the MSI MEG Z890 ACE. The most impactful advantage held by the X870E ACE MAX is its LAN capability, which is 100% better than that of its counterpart. While the Z890 ACE maintains a notable lead in power delivery, the superior networking hardware gives the X870E ACE MAX a clear edge in overall feature count.

Users who prioritize high-speed network connectivity should choose the MSI MEG X870E ACE MAX to leverage its significant LAN advantage. Conversely, those who require more robust power delivery for their system should opt for the MSI MEG Z890 ACE, as it offers 38% more VRM phases. Selecting between these two motherboards depends entirely on whether your specific build requirements lean toward networking throughput or the increased power stability provided by the Z890 ACE.