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Antec Signature 1300 Platinum vs Corsair HX1000i: Comparison
Antec Signature 1300 Platinum and Corsair HX1000i separate most on pcie 8-pin connectors: Antec Signature 1300 Platinum at 12, Corsair HX1000i at 4, 67% in favour of Antec Signature 1300 Platinum. Wattage splits them by another 23%, again favouring Antec Signature 1300 Platinum. They match on 10 other specifications, including 80 plus rating, form factor and cybenetics efficiency. On price, Corsair HX1000i sits at $249.99 against $289.99 for Antec Signature 1300 Platinum.
Specs
| Specification | ![]() | ![]() |
|---|---|---|
| Brand | Antec | Corsair |
| Wattage | 1300 W | 1000 W-23% |
| 80 PLUS Rating | Platinum | Platinum |
| ATX Standard | ATX 2.x | ATX 3.1 |
| Form Factor | ATX | ATX |
| +12V Rail Amperage | 108 A | 83.3 A |
| Cybenetics Efficiency | Platinum | Platinum |
| Cybenetics Noise | None | A |
| PCIe CEM Standard | None | PCIe 5.1 |
| 12V-2x6 Connectors | 0 | 1 |
| Hold-Up Time | 21 ms-7% | 22.7 ms |
| Zero-RPM Mode | Yes | Yes |
| Sleeved Cables | Yes | No |
| Measured Avg Efficiency | 89.97 % | 90.02 % |
| PCIe 8-pin Connectors | 12 | 4-67% |
| Measured Average Noise | 47.79 dBA | 21.85 dBA |
| 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, 2x EPS 4+4, 1x 12V-2x6 (600W), 4x PCIe 6+2-pin, 8x SATA, 8x Molex |
| Fan Size | 135 mm | 140 mm |
| Fan Model / Bearing | Hong Hua HA13525H12F-Z, fluid dynamic bearing | 140mm NR140P, fluid dynamic bearing |
| OEM / Platform | Seasonic | CWT |
| Japanese Capacitors | Yes | Yes |
| EPS 8-pin Connectors | 2 | 2 |
| SATA Connectors | 14 | 8 |
| Molex Connectors | 5 | 8 |
| 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 675+110mm, 12V-2x6 650mm, SATA 455+115+115+115mm, Molex 450+100+100+100mm |
| Length | 170 mm | 180 mm |
| Colour | Black | Black |
| Fan Bearing | Fluid Dynamic | Fluid Dynamic |
| Modularity | Fully Modular | Fully Modular |
| Protections | OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO | OCP, OVP, OPP, SCP, OTP, UVP |
| Warranty | 10 years | 10 years |
| Model | Signature Platinum 1300 | HX1000i |
| Typical Price | $289.99 | $249.99 |
| Source URL | https://www.antec.com/product/power/signature-platinum-1300 | https://www.corsair.com/us/en/p/psu/cp-9020259-na/hx1000i-fully-modular-ultra-low-noise-platinum-atx-1000-watt-pc-power-supply-cp-9020259-na |
Price comparison
| Retailer | Antec Signature 1300 Platinum | Corsair HX1000i |
|---|---|---|
| Consumercarts listing | $289.99 View on Consumercarts listing | $249.99 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.
Corsair HX1000i
8.8 / 10 Expert Rating
A best-in-class 1000W Platinum-rated ATX unit for an RTX 4080/4090 or RTX 5080/5090-class high-end gaming build, held back only by its premium price.
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