be quiet! - Pure Power 12 M 850W vs Corsair - HX1500i (2023)
Between the Pure Power 12 M 850W and HX1500i (2023), the Pure Power 12 M 850W comes out ahead in several specs, while the HX1500i (2023) wins on wattage / efficiency. Overall, the Pure Power 12 M 850W scores 61.1 and the HX1500i (2023) scores 90.7 on our Mars Score.
Which should you buy?
The HX1500i (2023) is the clear pick on raw spec strength, leading by 29.6 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.
The Pure Power 12 M 850W does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the HX1500i (2023) if you care most about wattage / efficiency. Its strongest claims are wattage, efficiency.
Both ship with comparable modular, atx 3.0 / 12vhpwr, warranty, so those specs do not separate the two — focus on the differences below.
Bottom line: the HX1500i (2023) is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why be quiet! - Pure Power 12 M 850W wins
- No decisive advantages.
Why Corsair - HX1500i (2023) wins
- ▲Wattage — 76.47% more. 1500 W vs 850 W.
- ▲Efficiency: 80+ Platinum (vs 80+ Gold).
Spec comparison
Spec
| Spec | be quiet! - Pure Power 12 M 850W | Corsair - HX1500i (2023) |
|---|---|---|
| Wattage | 850 W | 1500 Wlead |
| Efficiency | 80+ Gold | 80+ Platinumlead |
| Form factor | ATX | ATX |
Features
| Spec | be quiet! - Pure Power 12 M 850W | Corsair - HX1500i (2023) |
|---|---|---|
| Modular | full | full |
| ATX 3.0 / 12VHPWR | true | true |
| Warranty | 10 yrs | 10 yrs |
Spec-level deep dives
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