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Corsair - RM1200x SHIFT vs Fractal Design - Ion+ 2 Platinum 860W

Last updated · How Mars Score works
RM1200x SHIFTCORSAIRRENDER
Probe A
Corsair
RM1200x SHIFT
77.5/ 100B
Spec78· 55%
Features· 45%
Ion+ 2 Platinum 860WFRACTAL DESIGNRENDER
Probe B
Fractal Design
Ion+ 2 Platinum 860W
61.5/ 100C
Spec62· 55%
Features· 45%
Quick verdict

Between the RM1200x SHIFT and Ion+ 2 Platinum 860W, the RM1200x SHIFT comes out ahead in wattage and atx 3.0 / 12vhpwr, while the Ion+ 2 Platinum 860W wins on efficiency. Overall, the RM1200x SHIFT scores 77.5 and the Ion+ 2 Platinum 860W scores 61.5 on our Mars Score.

Buying advice

Which should you buy?

The RM1200x SHIFT is the clear pick on raw spec strength, leading by 16.0 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

Pick the RM1200x SHIFT if you care most about wattage and atx 3.0 / 12vhpwr. The biggest gaps in its favor are wattage, atx 3.0 / 12vhpwr.

Pick the Ion+ 2 Platinum 860W if you care most about efficiency. Its strongest claims are efficiency.

Both ship with comparable modular, warranty, so those specs don't separate the two — focus on the differences below.

Bottom line: the RM1200x SHIFT is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Corsair - RM1200x SHIFT wins

  • Wattage — 39.53% more. 1200 W vs 860 W.
  • Has ATX 3.0 / 12VHPWR.

Why Fractal Design - Ion+ 2 Platinum 860W wins

  • Efficiency: 80+ Platinum (vs 80+ Gold).
Full readout

Spec comparison

Spec

SpecCorsair - RM1200x SHIFTFractal Design - Ion+ 2 Platinum 860W
Wattage1200 Wlead860 W
Efficiency80+ Gold80+ Platinumlead
Form factorATXATX

Features

SpecCorsair - RM1200x SHIFTFractal Design - Ion+ 2 Platinum 860W
Modularfullfull
ATX 3.0 / 12VHPWRtrueleadfalse
Warranty10 yrs10 yrs
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