The Seasonic Prime TX-1600 ATX 3.1 is the objective winner of this comparison, securing five out of seven total specification categories. Its most impactful advantage is the inclusion of the 12VHPWR connector, which represents a 100% improvement over the alternative. While the Corsair RM850x remains competitive in specific areas, it falls behind the superior connectivity standards and overall technical specifications offered by the Seasonic unit in this head-to-head evaluation.

Users requiring the latest power delivery standards for high-end hardware should choose the Seasonic Prime TX-1600 ATX 3.1 to utilize its native 12VHPWR connector. Conversely, the Corsair RM850x is the logical selection for budget-conscious builders who prioritize a lower MSRP, as it offers a 72% advantage in that category. Select the former for maximum compatibility with modern components or the latter if minimizing initial expenditure is your primary objective for the build.