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CORSAIR SF850

CORSAIR SF850 Specifications

The CORSAIR SF850 by Corsair is a power supply unit that provides 850 watts of power output. This unit follows the 3.1 standard and comes in a SFX size. It is certified with 80 PLUS® Platinum and rated at Platinum efficiency, reaching a peak efficiency of 92%. It features a 92 mm cooling fan with fan stop support, and is actively cooled. This PSU is modular . It delivers:

  • 71 A on the 12V rail (1 rail(s))
  • 20 A on the 5V rail
  • 20 A on the 3.3V rail
Operating at 100-240 V input, it includes a 7-year warranty. Physical dimensions are 4.92 x 3.94 x 2.5 inches.

CORSAIR SF850 Performance Review

The CORSAIR SF850 is a high power PSU, sufficient for mainstream gaming systems and content creation workstations. It provides sufficient power for systems with modern multi-core CPUs and performance-class GPUs, offering headroom for overclocking and future upgrades.

This PSU provides a very high efficiency of 92%, rated as Platinum. It offers superior energy conversion and lower heat output, making it ideal for performance systems. The included 7-year warranty suggests strong build quality and long-term reliability.

This PSU delivers excellent value, with a competitive cost of only $140.0 per kilowatt. Despite its affordable pricing, it maintains respectable performance and efficiency, making it an ideal choice for budget-conscious PC builders who don't want to compromise on quality.

Power Supply Information

Manufacturer: Corsair

Power Supply Name: CORSAIR SF850

Current Price Amazon: $119❗N/A

  • Amazon Price Updated: 2 weeks, 3 days ago.

  • Power Supply Available: False

    Power Output: 850 W

    ATX Version / Form Factor: 3.1 / SFX

    Certifications: 80 PLUS® Platinum

    Efficiency Rating: Platinum

    Modular / Fanless: True / False

    Fan Size / Fan Stop: 92 mm / True

    Dimensions: 4.92 x 3.94 x 2.5 inches

    Warranty: 7 years

    Input Voltage: 100-240 V

    Performance

    Number of 12 V Rails: 1

    Output 12 V / 5 V / 3.3 V: 71 A / 20 A / 20 A

    Maximum Efficiency: 92%

    Calculated Performance

    Performance: 69.2%

    Performance per Price: 58.2%

    Price per kW: 140.0 USD/kW