be quiet! - Pure Power 12 M 850W vs Fractal Design - Ion+ 2 Platinum 860W
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 | Fractal Design - Ion+ 2 Platinum 860W |
|---|---|---|
| Wattage | 850 W | 860 W |
| ATX 3.0 / 12VHPWR | true | false |
| Efficiency | 80+ Gold | 80+ Platinum |
Between the Pure Power 12 M 850W and Ion+ 2 Platinum 860W, the Pure Power 12 M 850W comes out ahead in atx 3.0 / 12vhpwr, while the Ion+ 2 Platinum 860W wins on wattage / efficiency. Overall, the Pure Power 12 M 850W scores 80.3 and the Ion+ 2 Platinum 860W scores 83.3 on our Mars Score.
Which should you buy?
The Ion+ 2 Platinum 860W edges ahead on the Mars Score (80.3 vs 83.3), but the 3.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Pure Power 12 M 850W if you care most about atx 3.0 / 12vhpwr. The biggest gaps in its favor are atx 3.0 / 12vhpwr. The single most decisive one: Has ATX 3.0 / 12VHPWR.
Pick the Ion+ 2 Platinum 860W if you care most about wattage / efficiency. Its strongest claims are wattage, efficiency. The single most decisive one: Wattage — 1.18% more. 860 W vs 850 W.
Both ship with comparable modular, warranty, 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 Fractal Design - Ion+ 2 Platinum 860W?
Fractal Design - Ion+ 2 Platinum 860W leads the current Mars Score by 3.0 points.The more useful decision is the trade-off behind that result: compare wattage, efficiency 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 has atx 3.
Choose Fractal Design - Ion+ 2 Platinum 860W if…
Fractal Design - Ion+ 2 Platinum 860W has the measurable edge on wattage w, efficiency.
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
- ▲Has ATX 3.0 / 12VHPWR.
Why Fractal Design - Ion+ 2 Platinum 860W wins
- ▲Wattage — 1.18% more. 860 W vs 850 W.
- ▲Efficiency: 80+ Platinum (vs 80+ Gold).
Spec comparison
Spec
| Spec | be quiet! - Pure Power 12 M 850W | Fractal Design - Ion+ 2 Platinum 860W |
|---|---|---|
| Wattage | 850 W | 860 Wlead |
| Efficiency | 80+ Gold | 80+ Platinumlead |
| Form factor | ATX | ATX |
Features
| Spec | be quiet! - Pure Power 12 M 850W | Fractal Design - Ion+ 2 Platinum 860W |
|---|---|---|
| Modular | full | full |
| Average noise (Cybenetics) | 25.03 dB(A) | lead |
| ATX 3.0 / 12VHPWR | truelead | false |
| Warranty | 10 yrs | 10 yrs |