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be quiet! Power Zone 2 850W vs Corsair RM1200x SHIFT: Comparison
be quiet! Power Zone 2 850W and Corsair RM1200x SHIFT separate most on wattage: be quiet! Power Zone 2 850W at 850 W, Corsair RM1200x SHIFT at 1200 W, 29% in favour of Corsair RM1200x SHIFT. PCIe 8-pin Connectors splits them by another 25%, again favouring Corsair RM1200x SHIFT. They match on 4 other specifications, including form factor, 12v-2x6 connectors and colour. On price, be quiet! Power Zone 2 850W sits at $124.99 against $249.99 for Corsair RM1200x SHIFT.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | Corsair |
| Wattage | 850 W-29% | 1200 W |
| 80 PLUS Rating | Platinum | Gold |
| ATX Standard | ATX 3.1 | ATX 3.0 |
| Form Factor | ATX | ATX |
| Single +12V Rail | Yes | true |
| Cybenetics Efficiency | Platinum | Gold |
| Cybenetics Noise | A+ | A |
| 12V-2x6 Connectors | 1 | 1 |
| Zero-RPM Mode | Yes | true |
| Sleeved Cables | Yes | No, flat ribbon/standard cables |
| PCIe 8-pin Connectors | 3-25% | 4 |
| Connector Count | 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 1x P4, 1x 12V-2x6 (600W), 3x PCIe 6+2-pin, 7x SATA, 1x Molex | 1x 24-pin ATX (side-mount), 2x EPS 4+4 (side-mount), 1x 12V-2x6 (600W, side-mount), 4x PCIe 6+2-pin, 8x SATA, 4x Molex |
| Fan Size | 140 mm | 105 |
| Fan Model / Bearing | Pure Wings 3 140mm (BQ PUW3-14025-HR), rifle bearing | 105mm fluid dynamic bearing, zero-RPM mode |
| OEM / Platform | FSP | Great Wall/CWT |
| Cable Lengths | ATX 590mm, EPS 700mm, PCIe 600mm, 12V-2x6 600mm, SATA 550+150+150+155mm and 500+150+150mm | ATX 610mm, EPS 650mm, PCIe 750mm, SATA 730-850mm |
| Length | 160 mm | 190 |
| Colour | Black | Black |
| MTBF | 100000 hours | 100000 |
| Modularity | Fully Modular | Fully Modular |
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP | OCP, OVP, OPP, SCP, OTP, UVP |
| Warranty | 10 years | 10 |
| Model | Power Zone 2 850W | RM1200x SHIFT |
| Typical Price | $124.99 | $249.99 |
Price comparison
| Retailer | be quiet! Power Zone 2 850W | Corsair RM1200x SHIFT |
|---|---|---|
| Consumercarts listing | $124.99 View on Consumercarts listing | $249.99 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
Corsair RM1200x SHIFT
8.3 / 10 Expert Rating
A solid 1200W Gold-rated ATX unit for a workstation or multi-GPU build with serious headroom, held back only by the usual mid-tier compromises on cabling and OEM sourcing.
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