The Corsair RM850x (2024) is the objective winner of this comparison, securing more total spec victories than its competitor. Its most significant advantage is the inclusion of a 12VHPWR connector, which represents a 100% improvement over the alternative. This feature provides a critical modern connection standard that the other unit lacks, making it the superior choice for users prioritizing current hardware compatibility and future-proofing their power delivery systems.

Users who require the specific 12VHPWR connector for modern graphics cards should choose the Corsair RM850x (2024) to ensure full compatibility. Conversely, the Seasonic Focus GX-850 is the better option for budget-conscious builders, as it offers a 20% advantage in MSRP. Those who do not require the proprietary connector and prefer to allocate their remaining funds elsewhere will find the latter unit to be the more cost-effective solution for their build.