be quiet! - Pure Power 12 M 850W vs Corsair - RM850e (2023)
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | be quiet! - Pure Power 12 M 850W | Corsair - RM850e (2023) |
|---|---|---|
| Warranty | 10 yrs | 7 yrs |
Between the Pure Power 12 M 850W and RM850e (2023), the Pure Power 12 M 850W comes out ahead in warranty, while the RM850e (2023) wins on several specs. Overall, the Pure Power 12 M 850W scores 80.3 and the RM850e (2023) scores 80.3 on our Mars Score.
Which should you buy?
These two are evenly matched on the broad strokes; the decision sits on which individual spec advantages weigh more for your use.
Pick the Pure Power 12 M 850W if you care most about warranty. The biggest gaps in its favor are warranty. The single most decisive one: Warranty — 3.00 yrs more. 10 vs 7.
The RM850e (2023) similarly does not carry a headline advantage on the popular specs — look at the full table for category-specific deltas.
Both ship with comparable wattage, efficiency, modular, 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.
Which should you buy: be quiet! - Pure Power 12 M 850W or Corsair - RM850e (2023)?
The two products are effectively tied on the current Mars Score.The more useful decision is the trade-off behind that result: compare the highlighted specifications against the way you will actually use the product.
Choose be quiet! - Pure Power 12 M 850W if…
be quiet! - Pure Power 12 M 850W has the measurable edge on warranty years.
Choose Corsair - RM850e (2023) if…
Corsair - RM850e (2023) does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why be quiet! - Pure Power 12 M 850W wins
- ▲Warranty — 3.00 yrs more. 10 vs 7.
Why Corsair - RM850e (2023) wins
- No decisive advantages.
Spec comparison
Spec
| Spec | be quiet! - Pure Power 12 M 850W | Corsair - RM850e (2023) |
|---|---|---|
| Wattage | 850 W | 850 W |
| Efficiency | 80+ Gold | 80+ Gold |
| Form factor | ATX | ATX |
Features
| Spec | be quiet! - Pure Power 12 M 850W | Corsair - RM850e (2023) |
|---|---|---|
| Modular | full | full |
| Average noise (Cybenetics) | 25.03 dB(A)lead | 26.48 dB(A) |
| ATX 3.0 / 12VHPWR | true | true |
| Warranty | 10 yrslead | 7 yrs |