Between the RM1200x SHIFT and SuperNOVA 850 G7, the RM1200x SHIFT comes out ahead in wattage and atx 3.0 / 12vhpwr, while the SuperNOVA 850 G7 wins on several specs. Overall, the RM1200x SHIFT scores 77.5 and the SuperNOVA 850 G7 scores 61.1 on our Mars Score.
Which should you buy?
The RM1200x SHIFT is the clear pick on raw spec strength, leading by 16.4 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.
The SuperNOVA 850 G7 similarly doesn't carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable efficiency, 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 — 41.18% more. 1200 W vs 850 W.
- ▲Has ATX 3.0 / 12VHPWR.
Why EVGA - SuperNOVA 850 G7 wins
- No decisive advantages.
Spec comparison
Spec
| Spec | Corsair - RM1200x SHIFT | EVGA - SuperNOVA 850 G7 |
|---|---|---|
| Wattage | 1200 Wlead | 850 W |
| Efficiency | 80+ Gold | 80+ Gold |
| Form factor | ATX | ATX |
Features
| Spec | Corsair - RM1200x SHIFT | EVGA - SuperNOVA 850 G7 |
|---|---|---|
| Modular | full | full |
| ATX 3.0 / 12VHPWR | truelead | false |
| Warranty | 10 yrs | 10 yrs |
Spec-level deep dives
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