The ASRock X870E Nova WiFi wins in 11 out of 14 comparable specs, with 1 tie. Its biggest advantage is Max Memory (300% better).
PRO B660M-A WIFI DDR4 wins in 2 specs (PCIe x1 Slots: 100% better).
Recommendation
Choose X870E Nova WiFi if you want the best overall performance — especially max memory.
Choose PRO B660M-A WIFI DDR4 if pcie x1 slots matters more to you.
AI Versus Verdict
The ASRock X870E Nova WiFi is the objective winner of this comparison, securing victories in eleven out of fourteen evaluated categories. Its most significant technical advantage is its maximum memory capacity, which is 300% higher than that of the alternative. This substantial lead in memory support establishes the ASRock X870E Nova WiFi as the superior option for users requiring high-density RAM configurations for demanding workloads or future-proofing their system architecture.
Users prioritizing high-capacity memory should select the ASRock X870E Nova WiFi for its clear advantage in that category. Conversely, the MSI PRO B660M-A WIFI DDR4 is the better choice for those who specifically require additional expansion options, as it offers a 100% advantage in the number of available PCIe x1 slots. Choosing between these two motherboards depends entirely on whether your build necessitates greater memory overhead or increased connectivity via expansion slots.
Generated by Gemini from the objective spec comparison above. AI advice is a summary, not a benchmark — always verify critical purchases.