The ASUS TUF GAMING B550-PLUS and the MSI PRO B660M-A WIFI DDR4 are tied in this objective comparison, as each motherboard secures one spec victory with one additional category resulting in a tie. The most impactful advantage for the ASUS TUF GAMING B550-PLUS is its maximum memory capacity, which is 100% better than the alternative. Conversely, the MSI PRO B660M-A WIFI DDR4 offers a 25% better MSRP, representing its most significant spec advantage over the competition.

Users prioritizing high-capacity memory support should select the ASUS TUF GAMING B550-PLUS for their build. This board is the superior choice for those who require double the memory potential compared to the other option. Alternatively, budget-conscious builders should choose the MSI PRO B660M-A WIFI DDR4, as it provides a 25% advantage in MSRP. Both motherboards offer comparable performance across the remaining evaluated specifications, making the decision dependent on your specific memory needs or cost considerations.