Fractal Design - Ion+ 2 Platinum 860W vs Seasonic - FOCUS GX-850

The Ion+ 2 Platinum 860W edges ahead on the Mars Score (83.3 vs 80.3), but the 3.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Ion+ 2 Platinum 860W if you care most about wattage / efficiency. The biggest gaps in its favor are wattage, efficiency. The single most decisive one: Wattage — 1.18% more. 860 W vs 850 W.

Pick the FOCUS GX-850 if you care most about atx 3.0 / 12vhpwr. Its strongest claims are atx 3.0 / 12vhpwr. The single most decisive one: Has ATX 3.0 / 12VHPWR.

Both ship with comparable modular, warranty, so those specs do not separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.