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Antec Signature 1300 Platinum vs Seasonic Focus GX-650: Comparison
Antec Signature 1300 Platinum and Seasonic Focus GX-650 separate most on pcie 8-pin connectors: Antec Signature 1300 Platinum at 12, Seasonic Focus GX-650 at 2, 83% in favour of Antec Signature 1300 Platinum. Wattage splits them by another 50%, again favouring Antec Signature 1300 Platinum. They match on form factor, colour and modularity. On price, Seasonic Focus GX-650 sits at $99.99 against $289.99 for Antec Signature 1300 Platinum.
Specs
| Specification | ![]() | ![]() |
|---|---|---|
| Brand | Antec | Seasonic |
| Wattage | 1300 W | 650 W-50% |
| 80 PLUS Rating | Platinum | Gold |
| ATX Standard | ATX 2.x | ATX 3.0 |
| Form Factor | ATX | ATX |
| Single +12V Rail | Yes | true |
| Cybenetics Efficiency | Platinum | Gold |
| Cybenetics Noise | None | A |
| 12V-2x6 Connectors | 0 | 1 |
| Zero-RPM Mode | Yes | true |
| Sleeved Cables | Yes | No, flat ribbon/standard cables |
| PCIe 8-pin Connectors | 12 | 2-83% |
| Connector Count | 1x 24-pin ATX, 2x EPS 4+4, 12x PCIe 6+2-pin, 14x SATA, 5x Molex, 1x FDD | 1x 24-pin ATX, 1x EPS 4+4, 1x 12V-2x6 (450W), 2x PCIe 6+2-pin, 6x SATA, 2x Molex |
| Fan Size | 135 mm | 120 |
| Fan Model / Bearing | Hong Hua HA13525H12F-Z, fluid dynamic bearing | 120mm fluid dynamic bearing, Hybrid Silent fan control |
| OEM / Platform | Seasonic | Seasonic (in-house) |
| Japanese Capacitors | Yes | true |
| Cable Lengths | ATX 600mm, EPS 650mm, PCIe 670+70mm, SATA 400+115+115+115mm and 350+150+150+150mm, Molex 450+120+120mm and 350+120mm | ATX 610mm, EPS 650mm, PCIe 650-750mm, SATA 730-900mm |
| Length | 170 mm | 140 |
| Colour | Black | Black |
| Modularity | Fully Modular | Fully Modular |
| Protections | OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO | OCP, OVP, OPP, SCP, OTP, UVP |
| Warranty | 10 years | 10 |
| Model | Signature Platinum 1300 | Focus GX-650 |
| Typical Price | $289.99 | $99.99 |
Price comparison
| Retailer | Antec Signature 1300 Platinum | Seasonic Focus GX-650 |
|---|---|---|
| Consumercarts listing | $289.99 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
Antec Signature 1300 Platinum
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.
Seasonic Focus GX-650
8.3 / 10 Expert Rating
A solid 650W Gold-rated ATX unit for a mainstream single-GPU gaming build, held back only by the usual mid-tier compromises on cabling and OEM sourcing.
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