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be quiet! Pure Power 12 550W vs Corsair HX850i: Comparison
be quiet! Pure Power 12 550W and Corsair HX850i separate most on pcie 8-pin connectors: be quiet! Pure Power 12 550W at 2, Corsair HX850i at 6, 67% in favour of Corsair HX850i. Wattage splits them by another 35%, again favouring Corsair HX850i. They match on 4 other specifications, including form factor, colour and mtbf. On price, be quiet! Pure Power 12 550W sits at $74.99 against $224.99 for Corsair HX850i.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | Corsair |
| Wattage | 550 W-35% | 850 W |
| 80 PLUS Rating | Gold | Platinum |
| ATX Standard | ATX 3.1 | ATX 2.x |
| Form Factor | ATX | ATX |
| Zero-RPM Mode | No | Yes |
| PCIe 8-pin Connectors | 2-67% | 6 |
| Connector Count | 1x 24-pin ATX, 1x EPS 4+4, 1x 12V-2x6, 2x PCIe 6+2-pin, 5x SATA, 1x Molex (all fixed) | 1x 24-pin ATX, 2x EPS 8-pin, 6x PCIe 6+2-pin, 12x SATA, 2x Molex, 2x FDD |
| Fan Size | 120 mm | 140 mm |
| Fan Model / Bearing | 120mm be quiet! fan, rifle bearing | 140mm fluid dynamic bearing |
| SATA Connectors | 5 | 12 |
| Length | 160 mm | 180 mm |
| Colour | Black | Black |
| Fan Bearing | Rifle | Fluid Dynamic |
| MTBF | 100000 hours | 100000 hours |
| Modularity | Non-Modular | Fully Modular |
| Warranty | 10 years | 10 years |
| Model | Pure Power 12 550W | HX850i |
| Typical Price | $74.99 | $224.99 |
| Source URL | https://www.bequiet.com/en/powersupply/5684 | https://www.corsair.com/us/en/p/psu/cp-9020073-na/hxi-series-hx850i-high-performance-atx-power-supply-850-watt-80-plus-platinum-certified-psu-cp-9020073-na |
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Corsair HX850i |
|---|---|---|
| Amazon | $74.99 View on Amazon | View on Amazon |
| Newegg | View on Newegg | |
| Corsair | $224.99 View on Corsair |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
be quiet! Pure Power 12 550W
7.8 / 10 Expert Rating
A quiet, Gold-rated 550W unit that's the right call for mainstream builds that don't need full modularity.
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