EVGA SuperNOVA 850 G6 Power Supply Review

Don't let the SuperNOVA name fool you. This PSU is far from exploding.

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EVGA SuperNOVA 850 G6
(Image credit: © Tom's Hardware)

Tom's Hardware Verdict

The EVGA SuperNOVA 850 G6 is a good PSU, but it has some strong competition.

Pros

  • +

    Full power at 47 degrees Celsius

  • +

    Good build quality

  • +

    Tight enough load regulation at 12V

  • +

    Efficient at super-light loads

  • +

    Long hold-up time

  • +

    Low inrush current with 115V

  • +

    Not noisy at normal operating conditions

  • +

    Fully modular

  • +

    Loads of connectors

  • +

    Compatible with the alternative sleep mode

  • +

    Compact dimensions

  • +

    10-year warranty

Cons

  • -

    Fan speed profile could be smoother

  • -

    Efficiency at normal and light loads could be higher

  • -

    High inrush current with 230V

  • -

    Not so efficient 5VSB rail

  • -

    Small distance between connectors

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With super-compact dimensions for an 850W unit and high build quality, the EVGA SuperNOVA 850 G6 definitely looks like an upgraded version of the corresponding FSP-made G5 model. It also achieves high enough overall performance to back up those first impressions, which puts it close to the competition from Corsair (RM850x), XPG (Core Reactor 850), Cooler Master (V850 Gold V2), and Seasonic (GX-850). Nonetheless, the older 850 G3 unit achieves notably higher performance, taking the lead from all aforementioned products. It is a shame that that EVGA stopped its cooperation with Super Flower.

The new EVGA G6 line consists of Seasonic-made models with capacities ranging from 750W to 1000W. We have already evaluated the flagship G6 unit, and its performance was amazing. We are eager to see if the middle member of the line, with 850W max power, will achieve the same high-performance levels and earn a place in our best PSUs article. 

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Aris Mpitziopoulos
Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.

5 Comments Comment from the forums
  • Johnpombrio
    I own 3 of the EVGA Supernova 850 G2 power supplies with LOTS AND LOTS of extra modular cables 😊. I didn't know that they were legendary, heh. The specs on the side of the PSU are the same as the G6 so I expect that the main difference is the efficiency. I turned on ECO mode and I doubt the fan ever spins.
    Reply
  • taz-nz
    The biggest improvement is they got rid of the green chrome fan grill from the G5 series.

    If it's as reliable as the G2, G3 and G5 series, I look forward to building a lot of PCs with them.

    It would be nice if they stepped up their game in cheaper non-modular models, they are significantly lower quality.
    Reply
  • HideOut
    Why the hell is THG calling an 850W psu a mid range unit???
    Reply
  • SteelTeel
    Why is your noise measurement so different from what EVGA posts on its website? Are these measurements carried out with ECO mode enabled?
    Reply
  • wONKEyeYEs
    Just picked up a EVGA G1+ 850 W 80+ Gold.
    If anything goes wrong I know that I can count on EVGA's
    excellent service.
    Reply