The Corsair AX1600i is the objective winner of this comparison, securing more wins across the evaluated specifications. Its most significant advantage is the inclusion of PCIe connectors, which offer a 400% improvement over the alternative. This substantial lead in connectivity makes it the superior choice for high-end systems requiring extensive power distribution for multiple graphics cards or demanding hardware configurations that rely on a high volume of dedicated power cables.

The Seasonic Focus GX-650 is the better option for budget-conscious users, as it holds an 84% advantage in MSRP. Those building standard systems that do not require the extensive PCIe connectivity provided by the Corsair AX1600i will find the Seasonic Focus GX-650 to be the more economical selection. Choose the former for maximum hardware expansion capabilities or the latter if minimizing initial expenditure is the primary goal for your build.