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EVGA SuperNOVA 850 G6 Power Supply Review

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

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

Performance Rating

(Image credit: Tom's Hardware)

The 850 G5 model achieves good overall performance. Still, it cannot take the lead from the competition, and it stays notably behind the older 850 G3 model. 

Noise Rating

The graph below depicts the cooling fan's average noise over the PSU's operating range, with an ambient temperature between 30 to 32 degrees Celsius (86 to 89.6 degrees Fahrenheit).

(Image credit: Tom's Hardware)

Under normal operating temperatures, average noise output is low. 

Efficiency Rating

The following graph shows the PSU's average efficiency throughout its operating range with an ambient temperature close to 30 degrees Celsius.

(Image credit: Tom's Hardware)

It beats the Corsair RM850x here, but efficiency at normal and light loads needs a boost. 

Power Factor Rating

The following graphs show the PSU's average power factor reading throughout its operating range with an ambient temperature close to 30 degrees Celsius and 115V/230V voltage input. 

Image 1 of 2

EVGA 850 G6

(Image credit: Tom's Hardware)

PF Rating Charts 115V - 230V

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EVGA 850 G6

(Image credit: Tom's Hardware)

The APFC converter needs tuning for higher PF readings, especially with 230V input. 

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Aris Mpitziopoulos
Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.
  • 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