Consumercarts is reader-supported. Learn more
Antec Signature 1300 Platinum vs Corsair RM850x: Comparison
Antec Signature 1300 Platinum and Corsair RM850x separate most on pcie 8-pin connectors: Antec Signature 1300 Platinum at 12, Corsair RM850x at 3, 75% in favour of Antec Signature 1300 Platinum. Wattage splits them by another 35%, again favouring Antec Signature 1300 Platinum. They match on 9 other specifications, including form factor, single +12v rail and zero-rpm mode. On price, Corsair RM850x sits at $149.99 against $289.99 for Antec Signature 1300 Platinum.
Specs
| Specification |  |  |
|---|---|---|
| Brand | Antec | Corsair |
| Wattage | 1300 W | 850 W-35% |
| 80 PLUS Rating | Platinum | Gold |
| ATX Standard | ATX 2.x | ATX 3.1 |
| Form Factor | ATX | ATX |
| +12V Rail Amperage | 108 A | 70.8 A |
| Single +12V Rail | Yes | Yes |
| Cybenetics Efficiency | Platinum | Gold |
| Cybenetics Noise | None | A |
| PCIe CEM Standard | None | PCIe 5.1 |
| 12V-2x6 Connectors | 0 | 1 |
| Zero-RPM Mode | Yes | Yes |
| Sleeved Cables | Yes | No |
| PCIe 8-pin Connectors | 12 | 3-75% |
| 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, 3x PCIe 6+2-pin, 1x 12V-2x6, 8x SATA, 3x Molex |
| Fan Size | 135 mm | 140 mm |
| Fan Model / Bearing | Hong Hua HA13525H12F-Z, fluid dynamic bearing | 140mm fluid dynamic bearing (NR140HP) |
| OEM / Platform | Seasonic | CWT |
| Japanese Capacitors | Yes | Yes |
| EPS 8-pin Connectors | 2 | 2 |
| SATA Connectors | 14 | 8 |
| Molex Connectors | 5 | 3 |
| Length | 170 mm | 160 mm |
| Colour | Black | Black |
| Fan Bearing | Fluid Dynamic | Fluid Dynamic |
| Topology | Full-Bridge LLC + DC-DC | Half-Bridge LLC + DC-DC |
| 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 | RM850x (2024, ATX 3.1) |
| Typical Price | $289.99 | $149.99 |
| Source URL | https://www.antec.com/product/power/signature-platinum-1300 | https://www.corsair.com/us/en/p/psu/cp-9020270-na/rmx-series-rm850x-fully-modular-power-supply-cp-9020270-na |
Price comparison
| Retailer | Antec Signature 1300 Platinum | Corsair RM850x |
|---|---|---|
| Consumercarts listing | $289.99 View on Consumercarts listing | $149.99 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.
More comparisons in Power Supplies
- Antec Signature 1300 Platinum vs Fractal Design Ion+ 2 Platinum 760W
- Antec Signature 1300 Platinum vs MSI MPG A750GF
- ASUS TUF Gaming 850W Gold vs Corsair RM850x
- Antec Signature 1300 Platinum vs be quiet! Straight Power 12
- Antec Signature 1300 Platinum vs MSI MPG A850G PCIE5
- ASRock Steel Legend SL-750G vs Corsair RM850x