The ASRock H670 Steel Legend is the objective winner of this comparison, securing a lead in seven out of thirteen evaluated specifications. Its most significant advantage over the Gigabyte B850I AORUS PRO is the inclusion of double the memory slots, representing a 100% improvement in capacity potential. This hardware configuration provides a clear structural superiority for users prioritizing expansion options and overall system versatility over the specific memory frequency capabilities offered by the alternative board.

Users who require maximum RAM capacity for workstation tasks or extensive multitasking should choose the ASRock H670 Steel Legend for its superior slot count. Conversely, the Gigabyte B850I AORUS PRO is the better selection for enthusiasts who prioritize high-performance memory throughput, as it offers a 62% advantage in maximum memory speed. Selecting between these two motherboards depends entirely on whether your specific build requirements favor total memory volume or the fastest possible data transfer rates for your system memory.