The Corsair AX1600i is the objective winner of this comparison, securing five category wins against the three held by the Corsair SF1000L. The most impactful advantage for the AX1600i is its superior connectivity, offering 67% more PCIe connectors than the alternative. This significant lead in total power delivery infrastructure makes it the more robust choice for systems requiring extensive hardware expansion and high-end multi-GPU or multi-component configurations that rely on traditional power cabling.

Users should choose the Corsair AX1600i if they prioritize maximum PCIe connectivity for complex builds. Conversely, the Corsair SF1000L is the better option for those who require the 12VHPWR connector, as it provides a 100% advantage in this specific interface category. Selecting between these two units depends entirely on whether your build necessitates a higher volume of standard PCIe connections or the modern, native support for the 12VHPWR standard.