The Corsair SF850 and the Seasonic Prime TX-850 are tied in this objective comparison, as each unit secures two category wins with three remaining specifications identical. The most impactful advantage for the Corsair SF850 is its inclusion of a 12VHPWR connector, which represents a 100% improvement over the alternative. Conversely, the Seasonic Prime TX-850 holds a significant lead in power delivery, offering a 20% advantage in efficiency compared to its competitor.

Users prioritizing modern connectivity should select the Corsair SF850, as its native 12VHPWR support simplifies hardware integration for compatible components. Those who prioritize maximum power efficiency for their system should choose the Seasonic Prime TX-850. Both units provide equivalent performance across the majority of measured specifications, meaning the final decision rests entirely on whether the user values the specific connector standard or the superior efficiency rating provided by these respective power supplies.