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be quiet! Pure Power 12 550W vs Seasonic S12III 750 Bronze: Comparison
be quiet! Pure Power 12 550W and Seasonic S12III 750 Bronze separate most on wattage: be quiet! Pure Power 12 550W at 550 W, Seasonic S12III 750 Bronze at 750 W, 27% in favour of Seasonic S12III 750 Bronze. They match on 4 other specifications, including form factor, pcie 8-pin connectors and colour. On price, Seasonic S12III 750 Bronze sits at $69.99 against $74.99 for be quiet! Pure Power 12 550W.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | Seasonic |
| Wattage | 550 W-27% | 750 W |
| 80 PLUS Rating | Gold | Bronze |
| ATX Standard | ATX 3.1 | ATX 2.x |
| Form Factor | ATX | ATX |
| Single +12V Rail | Yes | true |
| 12V-2x6 Connectors | 1 | 0 |
| Zero-RPM Mode | No | false |
| Sleeved Cables | Yes | No |
| PCIe 8-pin Connectors | 2 | 2 |
| 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 ATX, 1x EPS 4+4, 2x PCIe 6+2-pin, 6x SATA, 2x Molex (all fixed) |
| Fan Size | 120 mm | 120 |
| Fan Model / Bearing | 120mm be quiet! fan, rifle bearing | 120mm sleeve bearing |
| OEM / Platform | HEC | Seasonic in-house |
| Cable Lengths | 24-pin 600mm, max cable length 550mm | 24-pin 500mm, EPS 500mm, PCIe 450mm, SATA 500-650mm |
| Length | 160 mm | 140 |
| Colour | Black | Black |
| MTBF | 100000 hours | 100000 |
| Modularity | Non-Modular | Non-Modular |
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP | OCP, OVP, SCP, OTP |
| Warranty | 10 years | 5-50% |
| Model | Pure Power 12 550W | S12III-750 |
| Typical Price | $74.99 | $69.99 |
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Seasonic S12III 750 Bronze |
|---|---|---|
| Amazon | $74.99 View on Amazon | $69.99 View on Amazon |
| Newegg | View on 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 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.
Seasonic S12III 750 Bronze
7.2 / 10 Expert Rating
A better-built-than-average budget Bronze unit for buyers who trust the Seasonic name over a modular cable set.
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