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Head-to-head · Best 850w Power Supplies

Corsair RM850e vs MSI MAG A850GL PCIE5

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 clear margin (4.1 vs 3.5). Corsair RM850e is best for: Budget-conscious builders wanting modular design and 12V-26 support. Read the strengths below before deciding.

Corsair RM850e
Higher ratedRanked #3 in Best 850w Power Supplies
Corsair RM850e
2 sources$115.99as of Sep 25

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 AmazonFull review →
MSI MAG A850GL PCIE5
Ranked #6 in Best 850w Power Supplies
MSI MAG A850GL PCIE5
1 source$109.99as of Oct 11

The MSI MAG A850GL PCIE5 is an 80 Plus Gold certified power supply designed for next-generation builds. It supports PCIe 5.0 and ATX 3.0 standards, featuring MSI Dragon branding on an understated look that LDLC says suits a dark tower better than a white one. The unit includes a comprehensive set of cables including 12VHPWR, PCIe, SATA, and legacy connections. Reviewers noted its solid build quality and compatibility with modern high-end components, though no significant drawbacks were identified in the cited reviews.

Strengths
  • — 80 Plus Gold certified efficiency
  • — PCIe 5.0 ready with 12VHPWR support, per TweakTown
  • — ATX 3.0 compliant
Watch-outs
    $109.99 · Check Price on AmazonFull review →

    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.

    MSI MAG A850GL PCIE5

    The MSI MAG A850GL PCIE5 offers PCIe 5.0 support, but lacks the 10-year warranty of the Corsair RM850x and Seasonic Focus GX-850. It's less efficient than the EVGA SuperNOVA 850 G7 and doesn't match the be quiet! Dark Power Pro 12 850W in terms of noise control or Titanium certification, though it does provide a more affordable alternative.

    Specs side-by-side

    SpecCorsair RM850eMSI MAG A850GL PCIE5
    Wattage850W850W
    Efficiency80 Plus Gold (up to 90%)80 Plus Gold
    ModularityFull ModularYes (full modular)
    Fan Type120mm rifle bearing with zero RPM modeFluid Dynamic Bearing
    Warranty7 yearsfive years
    ConnectorsFully modular with 12V-262x EPS (2x cables), 4x PCIe 6+2 pin (2x cables), 1x PCIe 12+4 pin (450W)
    Dimensions140 x 150 x 86 mm140 x 150 x 86 mm
    Form FactorATX 3.1ATX 3.0
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