EVGA SuperNOVA 850 G7 Power Supply Review

The EVGA SuperNOVA 850 G7 is a super-compact, high-performance PSU.

EVGA SuperNOVA 850 G7
Editor's Choice
(Image: © Tom's Hardware)

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Performance Rating

(Image credit: Tom's Hardware)

Overall performance tops the chart. 

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)

The EVGA 850 G7 is not noisy under average loads and operating temperatures, but it will get loud if you push it hard. This affects its overall noise output. 

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)

The 850 G7 is highly efficient.

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. 

The APFC converter has good performance with 115V, while there is room for improvement with 230V input. 

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Aris Mpitziopoulos
Contributing Editor

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

  • Co BIY
    Thanks for the review!

    Glad to see a new leader. EVGA is back in it.

    I think a short description of what level of system would be well served/matched to a power supply of this wattage would be a great addition to the review format.

    Something along the lines of : A well performing 850 Watt PSU like this one is well suited to power a gaming system up to an i5 12600K (150 watt TDP) with an RTX 3070 Ti GPU (290 Watt). -
    Reply