be quiet! - Pure Power 12 M 850W vs Seasonic - FOCUS PX-650
Between the Pure Power 12 M 850W and FOCUS PX-650, the Pure Power 12 M 850W comes out ahead in wattage and atx 3.0 / 12vhpwr, while the FOCUS PX-650 wins on efficiency. Overall, the Pure Power 12 M 850W scores 61.1 and the FOCUS PX-650 scores 50.8 on our Mars Score.
Which should you buy?
The Pure Power 12 M 850W is the clear pick on raw spec strength, leading by 10.3 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 Pure Power 12 M 850W 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 FOCUS PX-650 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 Pure Power 12 M 850W 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
- ▲Wattage — 30.77% more. 850 W vs 650 W.
- ▲Has ATX 3.0 / 12VHPWR.
Why Seasonic - FOCUS PX-650 wins
- ▲Efficiency: 80+ Platinum (vs 80+ Gold).
Spec comparison
Spec
| Spec | be quiet! - Pure Power 12 M 850W | Seasonic - FOCUS PX-650 |
|---|---|---|
| Wattage | 850 Wlead | 650 W |
| Efficiency | 80+ Gold | 80+ Platinumlead |
| Form factor | ATX | ATX |
Features
| Spec | be quiet! - Pure Power 12 M 850W | Seasonic - FOCUS PX-650 |
|---|---|---|
| Modular | full | full |
| ATX 3.0 / 12VHPWR | truelead | false |
| Warranty | 10 yrs | 10 yrs |
Frequently asked
Spec-level deep dives
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