The Corsair RM850x (2024) and the Fractal Design Ion+ 2 Platinum 860W are objectively tied in this comparison, as each unit leads in two out of seven measured specifications. The most impactful advantage for the Corsair RM850x (2024) is its inclusion of a 12VHPWR connector, which represents a 100% improvement over the competition. Conversely, the Fractal Design Ion+ 2 Platinum 860W holds a significant edge in power efficiency, outperforming the other unit by 25% in that specific category.

Users prioritizing modern hardware compatibility should select the Corsair RM850x (2024) to utilize the integrated 12VHPWR connector. This choice is ideal for those building systems that require direct support for current high-end graphics cards. Alternatively, those focused on maximizing energy savings should choose the Fractal Design Ion+ 2 Platinum 860W. This unit is the superior option for users who value higher efficiency ratings as their primary requirement for a power supply unit.