The Corsair SF850 and the Fractal Design Ion+ 2 Platinum 860W represent a tie in overall technical specifications, with each unit securing three category wins and three ties. The most impactful advantage for the Corsair SF850 is the inclusion of a 12VHPWR connector, which provides a 100% improvement in native compatibility for modern hardware. Conversely, the Fractal Design Ion+ 2 Platinum 860W offers a 33% advantage in the total number of available PCIe connectors.

Users prioritizing modern GPU compatibility should select the Corsair SF850 for its native 12VHPWR support. Alternatively, those who require a higher quantity of traditional PCIe connections for multi-GPU setups or complex peripheral configurations should choose the Fractal Design Ion+ 2 Platinum 860W. Both power supplies offer equivalent performance across the remaining measured metrics, making the decision dependent entirely on whether your specific build requires the newer connector standard or a higher count of legacy PCIe cables.