Consumercarts is reader-supported. Learn more
be quiet! Pure Power 12 M 850W vs Corsair CX550M: Comparison
be quiet! Pure Power 12 M 850W and Corsair CX550M separate most on pcie 8-pin connectors: be quiet! Pure Power 12 M 850W at 4, Corsair CX550M at 2, 50% in favour of be quiet! Pure Power 12 M 850W. Warranty splits them by another 50%, again favouring be quiet! Pure Power 12 M 850W. They match on 7 other specifications, including form factor, zero-rpm mode and fan size. On price, Corsair CX550M sits at $54.99 against $129.99 for be quiet! Pure Power 12 M 850W.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | Corsair |
| Wattage | 850 W | 550 W-35% |
| 80 PLUS Rating | Gold | Bronze |
| ATX Standard | ATX 3.0 | ATX 2.x |
| Form Factor | ATX | ATX |
| Single +12V Rail | No | Yes |
| Cybenetics Efficiency | Platinum | Silver |
| Cybenetics Noise | A- | A |
| 12V-2x6 Connectors | 1 | 0 |
| Hold-Up Time | 20.6 ms | 11.1 ms-46% |
| Zero-RPM Mode | No | No |
| Sleeved Cables | Yes | No |
| Measured Avg Efficiency | 89.81 % | 85.91 % |
| PCIe 8-pin Connectors | 4 | 2-50% |
| Measured Average Noise | 25.03 dBA | 20.2 dBA |
| Connector Count | 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 1x 12VHPWR (600W), 4x PCIe 6+2-pin, 6x SATA, 2x Molex | 1x 24-pin ATX (fixed), 1x EPS 4+4 (fixed), 2x PCIe 6+2-pin, 6x SATA, 4x Molex |
| Fan Size | 120 mm | 120 mm |
| Fan Model / Bearing | 120mm rifle bearing (BQ QF2-12025-HS) | 120mm rifle bearing (HA1225H12F-Z) |
| OEM / Platform | HEC | CWT |
| EPS 8-pin Connectors | 2 | 1 |
| SATA Connectors | 6 | 6 |
| Molex Connectors | 2 | 4 |
| Length | 160 mm | 140 mm |
| Colour | Black | Black |
| Fan Bearing | Rifle | Rifle |
| MTBF | 100000 hours | 100000 hours |
| Modularity | Fully Modular | Semi-Modular |
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP | OCP, OVP, SCP, OTP |
| Warranty | 10 years | 5 years-50% |
| Model | Pure Power 12 M 850W | CX550M |
| Typical Price | $129.99 | $54.99 |
| Source URL | https://www.bequiet.com/en/powersupply/4072 | https://www.corsair.com/us/en/p/psu/cp-9020220-na/cx-m-series-cx550m-550-watt-80-plus-bronze-semi-modular-atx-psu-cp-9020220-na |
Price comparison
| Retailer | be quiet! Pure Power 12 M 850W | Corsair CX550M |
|---|---|---|
| Consumercarts listing | $129.99 View on Consumercarts listing | |
| Amazon | $54.99 View on Amazon | |
| Newegg | View on Newegg |
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 M 850W
8.2 / 10 Expert Rating
The 850W Pure Power 12 M tops out the modular M-series, giving budget-focused builders a native 12V-2x6 connector and Gold efficiency without stepping up to the pricier Straight Power line.
Corsair CX550M
6.9 / 10 Expert Rating
A safe, unglamorous budget Bronze pick for entry-level gaming PCs that don't need Gold efficiency or full modularity.
More comparisons in Power Supplies
- be quiet! Pure Power 12 M 850W vs Thermaltake Toughpower iRGB Plus 850W Platinum
- ASUS ROG Loki SFX-L 850W Platinum vs be quiet! Pure Power 12 M 850W
- be quiet! Pure Power 12 M 850W vs Cooler Master V Platinum 3000
- be quiet! Pure Power 12 M 850W vs MSI MEG Ai1300P PCIE5
- be quiet! Pure Power 12 M 850W vs Corsair RM1200x SHIFT
- be quiet! Pure Power 12 M 850W vs MSI MPG Ai1300TS PCIE5