The ASUS TUF GAMING B860-PLUS WIFI is the objective winner of this comparison, securing a lead in seven out of eleven evaluated specifications. Its most significant advantage is the inclusion of M.2 slots, which offer a 200% improvement over the alternative. This superior storage expandability makes it the more robust choice for users requiring high-density data configurations or multiple high-speed drives within their system build.

Users prioritizing extensive storage capacity should select the ASUS TUF GAMING B860-PLUS WIFI for its clear advantage in M.2 connectivity. Conversely, the Gigabyte A620M DS3H is the better option for those who specifically require additional PCIe x1 slots, as it provides a 100% advantage in that category. Choosing between these two motherboards depends entirely on whether your build configuration demands more high-speed storage or increased legacy expansion card support.