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be quiet! Pure Power 12 550W vs Seasonic Prime PX-1300: Comparison
be quiet! Pure Power 12 550W and Seasonic Prime PX-1300 separate most on pcie 8-pin connectors: be quiet! Pure Power 12 550W at 2, Seasonic Prime PX-1300 at 6, 67% in favour of Seasonic Prime PX-1300. Wattage splits them by another 58%, again favouring Seasonic Prime PX-1300. They match on form factor, 12v-2x6 connectors and colour. On price, be quiet! Pure Power 12 550W sits at $74.99 against $299.99 for Seasonic Prime PX-1300.
Specs
| Specification |  |  |
|---|---|---|
| Brand | be quiet! | Seasonic |
| Wattage | 550 W-58% | 1300 W |
| 80 PLUS Rating | Gold | Platinum |
| ATX Standard | ATX 3.1 | ATX 3.0 |
| Form Factor | ATX | ATX |
| Single +12V Rail | Yes | true |
| 12V-2x6 Connectors | 1 | 1 |
| Zero-RPM Mode | No | true |
| Sleeved Cables | Yes | No, flat ribbon/standard cables |
| PCIe 8-pin Connectors | 2-67% | 6 |
| 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, 2x EPS 4+4, 1x 12V-2x6 (600W), 6x PCIe 6+2-pin, 10x SATA, 4x Molex |
| Fan Size | 120 mm | 135 |
| Fan Model / Bearing | 120mm be quiet! fan, rifle bearing | 135mm fluid dynamic bearing, Hybrid Silent fan control |
| OEM / Platform | HEC | Seasonic (in-house) |
| Cable Lengths | 24-pin 600mm, max cable length 550mm | ATX 610mm, EPS 650-750mm, PCIe 750-800mm, SATA 730-980mm |
| Length | 160 mm | 170 |
| Colour | Black | Black |
| MTBF | 100000 hours | 100000 |
| Modularity | Non-Modular | Fully Modular |
| Protections | OTP, OCP, OPP, SCP, OVP, UVP, SIP | OCP, OVP, OPP, SCP, OTP, UVP |
| Warranty | 10 years-17% | 12 |
| Model | Pure Power 12 550W | Prime PX-1300 |
| Typical Price | $74.99 | $299.99 |
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Seasonic Prime PX-1300 |
|---|---|---|
| Amazon | $74.99 View on Amazon | |
| Newegg | View on Newegg | |
| Consumercarts listing | $299.99 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 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 Prime PX-1300
8.8 / 10 Expert Rating
A best-in-class 1300W Platinum-rated ATX unit for a workstation or multi-GPU build with serious headroom, held back only by its premium price.
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