The ASRock Z890 Taichi is the objective winner of this comparison, securing more victories across the evaluated technical specifications. Its most significant advantage over the ASRock H670 Steel Legend is the inclusion of USB Type-C connectivity, which offers a 200% improvement in that specific category. While the ASRock H670 Steel Legend maintains a 100% advantage regarding the number of PCIe x1 slots, the ASRock Z890 Taichi demonstrates superior overall hardware capability across the majority of the measured fields.

Users who prioritize modern peripheral connectivity and high-end interface standards should select the ASRock Z890 Taichi for their build. Conversely, the ASRock H670 Steel Legend is the better choice for those who specifically require a higher quantity of PCIe x1 slots for expansion cards. By evaluating these distinct advantages, builders can choose the motherboard that aligns with their specific connectivity needs rather than relying solely on the broader spec-win count.