The Corsair AX1600i is the objective winner of this comparison, securing a lead across four measured specifications. Its most significant advantage is the inclusion of PCIe connectors, which provides a 233% increase in capacity compared to the alternative. This superior connectivity establishes the unit as the more robust option for systems requiring extensive hardware support. While both units offer distinct benefits, the Corsair AX1600i maintains a clear edge in overall technical specifications.

Users managing high-end workstations or systems with multiple graphics cards should choose the Corsair AX1600i for its superior PCIe connector count. Conversely, those prioritizing modern hardware standards should select the Corsair RM750x (2024), which offers a 100% advantage in 12VHPWR connector availability. Selecting between these two power supplies depends entirely on whether your specific build requires the extensive traditional PCIe support of the former or the native 12VHPWR compatibility of the latter.