Head-to-head · Best 850w Power Supplies

Corsair RM850e vs EVGA SuperNOVA 850 G7

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

EVGA SuperNOVA 850 G7 comes out ahead by a clear margin (4.4 vs 4.1). EVGA SuperNOVA 850 G7 is best for: Gaming enthusiasts seeking high-efficiency and reliability. Read the strengths below before deciding.

Ranked #3 in Best 850w Power Supplies

Corsair RM850e

4.1

2 sources$115.99as of Oct 21

The Corsair RM850e delivers reliable performance as part of Corsair's new RM series, offering fully modular cabling and native 12V-26 connectors for modern GPU support. Reviewers noted its efficient Cybenetics Gold-Certified design and quiet operation with zero RPM fan mode. While it provides solid power delivery and build quality, it trails competitors in warranty length, though KitGuru found only a £10 UK price difference over the 750W model. This PSU suits enthusiasts seeking a balance of efficiency and reliability without the premium warranty of flagship models.

Strengths

— Fully modular cabling allows for clean and customizable builds
— Native 12V-26 connector supports latest high-end graphics cards without adapters
— Efficient Cybenetics Gold-Certified design delivers up to 90% efficiency

Watch-outs

— KitGuru notes the 7-year warranty falls short of leading competitors' 12-year warranties

$115.99 · Check Price on Amazon Full review →

Higher ratedRanked #2 in Best 850w Power Supplies

EVGA SuperNOVA 850 G7

4.4

2 sources

Tom's Hardware reviewed the EVGA SuperNOVA 850 G7 as an 80 Plus Gold certified power supply delivering 92% efficiency or higher under typical loads. The unit features 100% Japanese capacitors, full modularity for improved airflow, and a fluid dynamic bearing fan with Eco mode for quiet operation and longevity. EVGA backs it with a 10-year limited warranty, positioning it as a reliable choice for gaming rigs, content creation workstations, or general builds requiring stable power delivery. This PSU is ideal for users seeking high-quality, efficient power with extended warranty coverage.

Strengths

— 80 Plus Gold certified with 92% efficiency or higher under typical loads
— Fully modular design for improved airflow and reduced cable clutter
— Fluid Dynamic bearing fan with EVGA Eco mode for ultra-quiet operation and extended lifespan

Watch-outs

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How they stack up

Corsair RM850e

The Corsair RM850e offers a more affordable entry point into the RM series compared to the RM850x, but lacks the 10-year warranty and fluid dynamic bearing fan. It's less efficient than the EVGA SuperNOVA 850 G7 and doesn't match the premium build quality of the be quiet! Dark Power Pro 12 850W, though it does provide native 12V-26 support like the latter.

EVGA SuperNOVA 850 G7

The EVGA SuperNOVA 850 G7 outperforms the Corsair RM850x with 100% Japanese capacitors and a more advanced Eco mode, while also offering better efficiency ratings. Unlike the Seasonic Focus GX-850, it avoids fan noise issues and provides a more reliable build quality, though it lacks the 10-year warranty of the Corsair RM850x.

Specs side-by-side

Spec	Corsair RM850e	EVGA SuperNOVA 850 G7
Wattage	850W	850W
Efficiency	80 Plus Gold (up to 90%)	80 Plus Gold
Modularity	Full Modular	Fully Modular
Fan Type	120mm rifle bearing with zero RPM mode	Fluid Dynamic Bearing
Warranty	7 years	10 years
Connectors	Fully modular with 12V-26	2x EPS, 6x PCIe 6+2 pin, 9 SATA, 4x 4-pin Molex, 1x FDD adapter
Dimensions	140 x 150 x 86 mm	150 x 85 x 130mm
Form Factor	ATX 3.1	ATX12V v2.52

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