The ASRock X870 Steel Legend WiFi wins in 7 out of 14 comparable specs, with 5 ties. Its biggest advantage is M.2 Slots (100% better).
PRO B860M-A WIFI wins in 2 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose X870 Steel Legend WiFi if you want the best overall performance — especially m.2 slots.
Choose PRO B860M-A WIFI if pcie x1 slots matters more to you.
AI Versus Verdict
The ASRock X870 Steel Legend WiFi is the objective winner of this comparison, securing more victories across the evaluated specifications. Its most impactful advantage is the inclusion of M.2 slots, which provides a 100% increase in capacity compared to the alternative. This significant lead in storage connectivity establishes the ASRock X870 Steel Legend WiFi as the superior choice for users prioritizing high-density drive configurations and modern storage expansion within their system build.
Users who require extensive storage options should select the ASRock X870 Steel Legend WiFi to leverage its superior M.2 slot count. Conversely, the MSI PRO B860M-A WIFI is the better option for those who specifically need additional PCIe x1 slots, as it offers a 100% advantage in that category. Choosing between these two motherboards depends entirely on whether your build configuration prioritizes high-speed storage expansion or the specific connectivity provided by extra PCIe x1 slots.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.