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be quiet! Pure Power 12 M 750W vs Corsair RM650x: Comparison
be quiet! Pure Power 12 M 750W and Corsair RM650x separate most on hold-up time: be quiet! Pure Power 12 M 750W at 21.4 ms, Corsair RM650x at 17 ms, 21% in favour of be quiet! Pure Power 12 M 750W. Wattage splits them by another 13%, again favouring be quiet! Pure Power 12 M 750W. They match on 9 other specifications, including 80 plus rating, form factor and pcie 8-pin connectors.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | Corsair |
| Wattage | 750 W | 650 W-13% |
| 80 PLUS Rating | Gold | Gold |
| ATX Standard | ATX 3.0 | ATX 2.x |
| Form Factor | ATX | ATX |
| Single +12V Rail | No | Yes |
| 12V-2x6 Connectors | 1 | 0 |
| Hold-Up Time | 21.4 ms | 17 ms-21% |
| Zero-RPM Mode | No | Yes |
| Sleeved Cables | Yes | No |
| PCIe 8-pin Connectors | 2 | 2 |
| Connector Count | 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 1x 12VHPWR (600W), 2x PCIe 6+2-pin, 5x SATA, 2x Molex | 1x 24-pin ATX, 1x EPS 4+4, 2x PCIe 6+2-pin, 6x SATA, 3x Molex |
| Fan Size | 120 mm | 135 mm |
| Fan Model / Bearing | 120mm rifle bearing | Magnetic Levitation |
| Length | 160 mm | 160 mm |
| Colour | Black | Black |
| MTBF | 100000 hours | 100000 hours |
| Modularity | Fully Modular | Fully Modular |
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP | OCP, OVP, OPP, SCP, OTP, UVP |
| Warranty | 10 years | 10 years |
| Model | Pure Power 12 M 750W | RM650x (2021) |
| Typical Price | $99.99 | $99.99 |
| Source URL | https://www.bequiet.com/en/powersupply/4073 | https://www.corsair.com/us/en/p/psu/cp-9020198-na/rmx-series-rm650x-650-watt-80-plus-gold-fully-modular-atx-psu-cp-9020198-na |
Price comparison
| Retailer | be quiet! Pure Power 12 M 750W | Corsair RM650x |
|---|---|---|
| Consumercarts listing | $99.99 View on Consumercarts listing | $99.99 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
be quiet! Pure Power 12 M 750W
8.2 / 10 Expert Rating
A solid 750W Gold-rated ATX unit for a popular RTX 4070 Ti / RTX 5070-class gaming build, held back only by the usual mid-tier compromises on cabling and OEM sourcing.
Corsair RM650x
8.2 / 10 Expert Rating
The 650x is Corsair's mainstream sweet spot: quiet Zero RPM idling, a 10-year warranty, and enough headroom for a mid-range gaming build without overspending on wattage you won't use.
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