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CORSAIR RM850x

CORSAIR RM850x Specifications

The CORSAIR RM850x 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 ATX size. It is certified with 80 PLUS Gold and rated at Gold efficiency, reaching a peak efficiency of 91%. It features a 140 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 10-year warranty. Physical dimensions are 160x150x86. Additional Notes: Hi quality and good overall performance

CORSAIR RM850x Performance Review

The CORSAIR RM850x 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 91%, rated as Gold. It offers superior energy conversion and lower heat output, making it ideal for performance systems. The included 10-year warranty suggests strong build quality and long-term reliability.

This PSU offers moderate value, priced at $175.3 per kilowatt. It delivers decent performance and efficiency, making it a solid mid-range choice for most PC builds. It strikes a good balance between performance and cost, especially for builders prioritizing stability without overspending.

Power Supply Information

Manufacturer: Corsair

Power Supply Name: CORSAIR RM850x

Current Price Amazon: $149

  • Amazon Price Updated: 4 hours, 32 minutes ago.

  • Power Supply Available: True

    Power Output: 850 W

    ATX Version / Form Factor: 3.1 / ATX

    Certifications: 80 PLUS Gold

    Efficiency Rating: Gold

    Modular / Fanless: True / False

    Fan Size / Fan Stop: 140 mm / True

    Dimensions: 160x150x86

    Warranty: 10 years

    Input Voltage: 100-240 V

    Comment: Hi quality and good overall performance

    Performance

    Number of 12 V Rails: 1

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

    Maximum Efficiency: 91%

    Calculated Performance

    Performance: 77.2%

    Performance per Price: 51.8%

    Price per kW: 175.3 USD/kW