The Seasonic Prime TX-850 is the objective winner of this comparison, securing more individual specification victories than its competitor. While the Corsair AX1600i holds a significant lead in total power delivery, offering 88% more wattage, the Seasonic Prime TX-850 provides the most impactful advantage by being 66% better in terms of MSRP. This makes the latter the more efficient choice based on the provided specifications, despite the former's superior raw power capacity.

Users requiring extreme power output for high-draw systems should select the Corsair AX1600i to leverage its massive wattage advantage. Conversely, those prioritizing cost-effectiveness should choose the Seasonic Prime TX-850, as it offers a superior MSRP while matching or exceeding the other unit in the majority of comparable specifications. Both units remain viable options depending on whether your primary requirement is maximum power delivery or a more favorable initial purchase cost.