Head-to-head · Best 850w Power Supplies

Corsair RM850e vs EVGA SuperNOVA 850 G6

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Corsair RM850e comes out ahead by a narrow margin (4.2 vs 4.0). The gap is mostly about fit for purpose — read the strengths below before deciding.

Higher ratedRanked #4 in Best 850w Power Supplies

Corsair RM850e

4.2

3 sources1 derived$119as of Jul 31

The Corsair RM850e is an affordable ATX 3.0 unit that performs solidly, with efficiency and a fully modular layout in its favor. Tech4Gamers reviewer Arsalan Shakil credited it with 'impressive efficiency and acceptable voltage regulation' even with non-Japanese capacitors and no native 12VHPWR connector. KitGuru's Allan 'Zardon' Campbell praised the quiet rifle-bearing fan and the soldering quality, but listed the 7-year warranty among the unit's shortcomings. That missing 12VHPWR connector is the catch for anyone running a high-end graphics card.

Strengths

— High efficiency with 90% efficiency rating
— Fully modular cabling for clean builds
— 7-year warranty for peace of mind

Watch-outs

— No native 12VHPWR connector for latest GPUs
— Uses non-Japanese capacitors

$119 · Check Price on Amazon Full review →

Ranked #5 in Best 850w Power Supplies

EVGA SuperNOVA 850 G6

4.0

3 sources2 derived$269.99as of Jun 28

Tom's Hardware found the EVGA SuperNOVA 850 G6, an 850W unit, performs well and is put together well. It's fully modular, compact, and holds voltage steady, though reviewers took issue with the fan behavior and with efficiency at typical loads. A 10-year warranty backs it, and it works in high-end builds. The problem is the company it keeps: this class is crowded.

Strengths

— Full power at 47 degrees Celsius
— Good build quality
— Tight load regulation at 12V

Watch-outs

— Fan speed profile could be smoother
— Efficiency at normal and light loads could be higher
— High inrush current with 230V

$269.99 · Check Price on Amazon Full review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

Specs side-by-side

Spec	Corsair RM850e	EVGA SuperNOVA 850 G6
Wattage	850W	850 W
Efficiency	ATX 3.0	91% or higher (under typical load)
Modularity	Fully	Fully modular
Fan Size	120mm rifle bearing	1 x 135 mm
Form Factor	ATX Form Factor	ATX Form Factor
Warranty	Seven-year	—
Compliance	80 PLUS Gold	ATX12V / EPS12V

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