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be quiet! Pure Power 12 550W vs Cougar GEX X2 850: Comparison
be quiet! Pure Power 12 550W and Cougar GEX X2 850 separate most on wattage: be quiet! Pure Power 12 550W at 550 W, Cougar GEX X2 850 at 850 W, 35% in favour of Cougar GEX X2 850. PCIe 8-pin Connectors splits them by another 33%, again favouring Cougar GEX X2 850. They match on 7 other specifications, including 80 plus rating, form factor and single +12v rail. On price, be quiet! Pure Power 12 550W sits at $74.99 against $150.00 for Cougar GEX X2 850.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | Cougar |
| Wattage | 550 W-35% | 850 W |
| 80 PLUS Rating | Gold | Gold |
| ATX Standard | ATX 3.1 | ATX 3.0 |
| Form Factor | ATX | ATX |
| Single +12V Rail | Yes | Yes |
| PCIe CEM Standard | PCIe 5.1 | PCIe 5.0 |
| 12V-2x6 Connectors | 1 | 1 |
| Zero-RPM Mode | No | Yes |
| PCIe 8-pin Connectors | 2-33% | 3 |
| 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 (20+4) ATX, 1x EPS 8-pin (4+4), 3x PCIe 6+2-pin, 1x 12V-2x6 (12+4, rated to 450W), 10x SATA, 2x 4-pin Molex (Cougar's own product page lists 3x PCIe 6+2-pin; hwbusters' physical teardown showed 4 connectors across 2 cables -- manufacturer spec used here, discrepancy noted) |
| Fan Size | 120 mm | 120 mm |
| Fan Model / Bearing | 120mm be quiet! fan, rifle bearing | 120mm Hydro Dynamic Bearing fan, model EFH-12E12H |
| OEM / Platform | HEC | XHY |
| SATA Connectors | 5 | 10 |
| Molex Connectors | 1 | 2 |
| Length | 160 mm | 140 mm |
| Colour | Black | Black |
| Fan Bearing | Rifle | Hydro |
| MTBF | 100000 hours | 100000 hours |
| Modularity | Non-Modular | Fully Modular |
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP | OCP, OVP, SCP, OTP, OPP, UVP |
| Warranty | 10 years | 7 years-30% |
| Model | Pure Power 12 550W | GEX X2 850 |
| Typical Price | $74.99 | $150 |
| Source URL | https://www.bequiet.com/en/powersupply/5684 | https://cougargaming.com/products/psus/gex-x2-850/ |
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Cougar GEX X2 850 |
|---|---|---|
| Amazon | $74.99 View on Amazon | |
| Newegg | View on Newegg | |
| Consumercarts listing | $150.00 View on Consumercarts listing |
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.
Cougar GEX X2 850
7.6 / 10 Expert Rating
A Gold-badged PSU that tests like a Platinum/A+ unit in the one independent lab report we found.
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