The Gigabyte B860 AORUS ELITE WIFI is the objective winner of this comparison, securing a lead in nine out of fourteen evaluated specifications. Its most significant advantage is its maximum memory capacity, which is 300% higher than that of the alternative. This substantial increase in memory support positions the Gigabyte B860 AORUS ELITE WIFI as the superior choice for users prioritizing high-capacity system configurations and modern hardware standards over the specific expansion layouts offered by the competition.

Users who require extensive memory overhead for demanding workloads should select the Gigabyte B860 AORUS ELITE WIFI to leverage its primary capacity advantage. Conversely, the MSI PRO B660M-A WIFI DDR4 is the better option for those who specifically need more PCIe x1 slots, as it provides a 100% advantage in that category. Choosing between these two motherboards depends entirely on whether your build prioritizes maximum system memory or the specific connectivity provided by additional expansion slots.