The MSI MAG Z890 TOMAHAWK WIFI is the objective winner of this comparison, securing victory in nine out of thirteen evaluated specifications. Its most significant advantage over the ASRock B550 Steel Legend is its maximum memory capacity, which is 100% higher. While the ASRock B550 Steel Legend holds its own with a 100% advantage in the number of PCIe x1 slots, the MSI MAG Z890 TOMAHAWK WIFI dominates the overall technical feature set.

Users requiring the highest possible memory capacity for intensive workloads should choose the MSI MAG Z890 TOMAHAWK WIFI for its superior support. Conversely, the ASRock B550 Steel Legend is the better option for builders who prioritize expansion through additional PCIe x1 slots. Selecting between these two motherboards depends entirely on whether your specific build configuration demands more system memory or a greater number of available expansion slots for peripheral cards.