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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 (3.8 vs 4.5). The gap is mostly about Gaming enthusiasts seeking high-efficiency and reliability — read the strengths below before deciding.

Corsair RM850e
Ranked #7 in Best 850w Power Supplies
Corsair RM850e
4 sources2 derived$115.99as of Sep 15

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 and offers only a modest price increase 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
  • — 7-year warranty falls short of leading competitors' 12-year warranties
  • — Moderate price premium over the 750W model with only 100W more power
$115.99 · Check Price on AmazonFull review →
EVGA SuperNOVA 850 G7
Higher ratedRanked #1 in Best 850w Power Supplies
EVGA SuperNOVA 850 G7
5 sources1 derived

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
  • — 100% Japanese capacitors for top-notch reliability and performance
  • — Fully modular design for improved airflow and reduced cable clutter
Watch-outs
    Check Price on AmazonFull 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.

    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

    SpecCorsair RM850eEVGA SuperNOVA 850 G7
    Wattage850W850W
    Efficiency80 Plus Gold (up to 90%)80 Plus Gold
    ModularityFull ModularFully Modular
    Fan Type120mm rifle bearing with zero RPM modeFluid Dynamic Bearing
    Warranty7 years10 years
    ConnectorsFully modular with 12V-262x EPS, 6x PCIe 6+2 pin, 9 SATA, 4x 4-pin Molex, 1x FDD adapter
    Dimensions140 x 150 x 86 mm150 x 85 x 130mm
    Form FactorATX 3.1ATX12V v2.52
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