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.

The short answer

Corsair RM850e comes out ahead by a clear margin (4.4 vs 4.1). The gap is mostly about fit for purpose — read the strengths below before deciding.

Higher ratedRanked #2 in Best 850w Power Supplies

Corsair RM850e

4.4

$109.99as of Jul 8

The Corsair RM850e delivers solid performance as an affordable ATX 3.0 PSU, earning praise for its efficiency and fully modular design. Tech4Gamers reviewer Sameed Hussain noted it offers 'impressive efficiency and acceptable voltage regulation' despite using non-Japanese capacitors and lacking a native 12VHPWR connector. KitGuru's Allan 'Zardon' Campbell highlighted its 7-year warranty and low-noise operation with a rifle-bearing fan. While it's a budget-friendly option, the lack of a native 12VHPWR connector may disappoint users with high-end graphics cards.

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

$109.99 · Check Price on Amazon Full review →

Ranked #5 in Best 850w Power Supplies

EVGA SuperNOVA 850 G6

4.1

$269.99as of Jul 8

The EVGA SuperNOVA 850 G6 is a solid 850W power supply that delivers good performance and build quality, according to Tom's Hardware. It features full modularity, a compact design, and strong voltage regulation, though reviewers noted issues with fan behavior and efficiency at typical loads. While it offers a 10-year warranty and is well-suited for high-end builds, it faces stiff competition in its class.

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 →

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)
Form Factor	ATX Form Factor	ATX Form Factor
Modularity	Fully	Fully modular
Fan Size	120mm rifle bearing	1 x 135 mm
Warranty	Seven-year	10-year warranty
Connectors	1x ATX 24-pin, 2x EPS 8-pin, 1x 12V-2x6, 2x PCIe 6+2 pin, 4x SATA, 4x PATA	—

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