The Gigabyte B660M DS3H DDR4 is the objective winner of this comparison, securing more total specification victories across the evaluated categories. Its most significant advantage over the alternative is the inclusion of four memory slots, which represents a 100% increase in capacity compared to the Gigabyte B760I AORUS PRO DDR5. This hardware configuration provides greater flexibility for system memory expansion and overall memory density for users who prioritize total RAM capacity in their build.

Users who require maximum memory expandability should select the Gigabyte B660M DS3H DDR4 for its superior slot count. Conversely, those who prioritize modern connectivity should choose the Gigabyte B760I AORUS PRO DDR5, as it offers a 100% advantage in USB Type-C port availability. The decision between these two motherboards rests entirely on whether your specific workflow demands additional memory modules or the enhanced peripheral support provided by the extra Type-C interface.