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Corsair RMe Series RM850e vs MSI MAG A750GL PCIE5

Researched, not hands-on tested.How we review ›

all judged against power supplies at a similar price

The Corsair RMe Series RM850e scores 7.0/10 overall, ahead of the MSI MAG A750GL PCIE5 at 6.4/10.

The Corsair RMe Series RM850e leads on quality and protections and noise.

The MSI MAG A750GL PCIE5 leads on efficiency.

They score the same on cabling and connectors and warranty.

The biggest difference is noise, where the Corsair RMe Series RM850e scores 8/10 to the MSI MAG A750GL PCIE5's 5/10.

Corsair RMe Series RM850e

Corsair RMe Series RM850e

7.0/10verdict: good, not the best

The Corsair RM850e is an 850W ATX power supply for people building or upgrading a quiet desktop or workstation. It suits buyers who want a fully modular unit with a native 12V-2x6 cable and a seven-year warranty. It is less suited to builds that need many PCIe 8-pin cables or a low-load, always-on setup.

Typically about £94.99 in the UK when we researched itSearch Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

MSI MAG A750GL PCIE5

MSI MAG A750GL PCIE5

6.4/10verdict: good, not the best

The MSI MAG A750GL PCIE5 is for anyone building or upgrading a mid-range gaming or general-purpose PC who wants a fully modular 750W supply with a native 16-pin graphics cable. It suits systems with one mainstream graphics card and a few drives. It is a weaker fit for silent builds or for the most power-hungry graphics cards.

Typically about £79.99 in the UK when we researched itSearch Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Scores, criterion by criterion

CriterionWeightCorsair RMe Series RM850eMSI MAG A750GL PCIE5
Quality and protections30%7/106/10
Efficiency20%6/107/10
Cabling and connectors20%7/107/10
Noise15%8/105/10
Warranty15%7/107/10
Overall7.0/106.4/10

Specifications

SpecCorsair RMe Series RM850eMSI MAG A750GL PCIE5
Rated output (W)850W750W rated output
Efficiency rating (80 Plus or Cybenetics)Cybenetics Gold80 PLUS Gold, up to 90%; Cybenetics Gold icon on MSI product page
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x supportATXATX, 140 × 150 × 86 mm
Modular cabling (fully, semi or non-modular)Fully modularFully modular
Graphics card connectors (12V-2x6 / 12VHPWR and PCIe 8-pin count)2 x PCIe 8-pin (6+2), 1 x 12V-2x6, 2 x EPS1x native 16-pin PCIe 5.x (450W, 12V-2x6 style), 3x PCIe 6+2-pin, 8x SATA, 4x Molex, 1x FDD, 2x EPS 4+4
Fan size and zero-fan mode120mm rifle-bearing fan120mm fluid dynamic bearing, 500–1800 RPM
Warranty (years)7 years7 years (MSI UK store)

Strengths and weaknesses

Corsair RMe Series RM850e

  • + Quiet: 22.81 dBA average and consistent owner praise
  • + Fully modular with a native 12V-2x6 cable
  • + Ripple and regulation measured well by independent reviewers
  • − Only two PCIe 8-pin connectors
  • − Efficiency drops below 70% at 2% load, owners report
  • − Standard cable has no OTP; owners report 3.3V droop

Skip it if:

  • Builders who need more than two PCIe 8-pin connectors for multiple GPUs.
  • Buyers running a near-idle, always-on machine where efficiency at 2% load matters.
  • Anyone who wants over-temperature protection on the standard cable.
Read the full Corsair RMe Series RM850e review ›

MSI MAG A750GL PCIE5

  • + Fully modular with a native 450W 16-pin cable
  • + 80 PLUS Gold rating with a seven-year UK warranty
  • + Owners describe it as quiet, stable and reliable
  • − Owners report whine and ticking from the fan at idle
  • − 750W is tight for RTX 4090 builds, per one owner
  • − Zero-RPM fan behaviour is reported inconsistently

Skip it if:

  • Anyone building a silent PC who needs the fan fully off at idle
  • Buyers planning an RTX 4090 or similarly power-hungry graphics card
  • Buyers who need a confirmed ATX 3.1 certification
Read the full MSI MAG A750GL PCIE5 review ›

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