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be quiet! Power Zone 2 850W vs XPG Core Reactor II 850W: Comparison
be quiet! Power Zone 2 850W and XPG Core Reactor II 850W separate most on pcie 8-pin connectors: be quiet! Power Zone 2 850W at 3, XPG Core Reactor II 850W at 4, 25% in favour of XPG Core Reactor II 850W. They match on 6 other specifications, including wattage, atx standard and form factor. On price, be quiet! Power Zone 2 850W sits at $124.99 against $139.99 for XPG Core Reactor II 850W.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | XPG |
| Wattage | 850 W | 850 W |
| 80 PLUS Rating | Platinum | Gold |
| ATX Standard | ATX 3.1 | ATX 3.1 |
| Form Factor | ATX | ATX |
| Single +12V Rail | Yes | true |
| Cybenetics Efficiency | Platinum | Gold |
| Cybenetics Noise | A+ | A |
| 12V-2x6 Connectors | 1 | 1 |
| Hold-Up Time | 21.1 ms | 17-19% |
| Zero-RPM Mode | Yes | true |
| Sleeved Cables | Yes | No |
| 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, 1x EPS 4+4, 1x 12V-2x6 (600W), 4x PCIe 6+2-pin, 8x SATA, 3x Molex |
| Fan Size | 140 mm | 135 |
| Fan Model / Bearing | Pure Wings 3 140mm (BQ PUW3-14025-HR), rifle bearing | 135mm FDB, near-silent 0dB mode |
| OEM / Platform | FSP | CWT |
| Cable Lengths | ATX 590mm, EPS 700mm, PCIe 600mm, 12V-2x6 600mm, SATA 550+150+150+155mm and 500+150+150mm | 24-pin 600mm, EPS 650mm, 12V-2x6 600mm, PCIe 650mm, SATA 750mm |
| Length | 160 mm | 150 |
| 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 | Core Reactor II 850W |
| Typical Price | $124.99 | $139.99 |
Price comparison
| Retailer | be quiet! Power Zone 2 850W | XPG Core Reactor II 850W |
|---|---|---|
| Consumercarts listing | $124.99 View on Consumercarts listing | $139.99 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
XPG Core Reactor II 850W
8.2 / 10 Expert Rating
Core Reactor II is the first ATX 3.1-certified unit in this batch, so it carries the tightened 12V-2x6 transient spec, a meaningful reassurance for anyone running a power-hungry RTX 50-series card.
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