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Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply vs MSI MAG A750GL PCIE5

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

all judged against power supplies at a similar price

The Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply scores 7.2/10 overall, ahead of the MSI MAG A750GL PCIE5 at 6.4/10.

The Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply leads on quality and protections, efficiency and noise.

They score the same on cabling and connectors and warranty.

Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply

Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply

7.2/10verdict: good, not the best

The RM1000e suits builders who want a 1000W ATX 3.1 power supply for a modern high-end graphics card. It fits people who care about low noise at everyday loads and want a native 12V-2x6 cable in the box. It is less suited to buyers who want premium internal components or a generous cable bundle.

Typically about £119.99 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 RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power SupplyMSI MAG A750GL PCIE5
Quality and protections30%7/106/10
Efficiency20%8/107/10
Cabling and connectors20%7/107/10
Noise15%7/105/10
Warranty15%7/107/10
Overall7.2/106.4/10

Specifications

SpecCorsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power SupplyMSI MAG A750GL PCIE5
Rated output (W)1000 W rated continuous output; +12V rail 83.3 A; +3.3V and +5V 150 W each; +5VSB 15 W750W rated output
Efficiency rating (80 Plus or Cybenetics)80 PLUS Gold and Cybenetics Gold per Corsair; Hardware Busters measured Cybenetics Platinum (89.483% at 115 V, 91.576% at 230 V)80 PLUS Gold, up to 90%; Cybenetics Gold icon on MSI product page
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x supportATX, 140 x 150 x 86 mm; ATX 3.1 certified; PCIe 5.1 compliantATX, 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)One native 12V-2x6 cable included; 1x 24-pin ATX, 2x EPS 8-pin, 7x SATA, 4x PATA; PCIe 8-pin count disputed across sources (2 to 6)1x 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 mode120 mm rifle-bearing fan with zero-RPM mode (fan off at low and moderate loads, per Corsair)120mm fluid dynamic bearing, 500–1800 RPM
Warranty (years)7 years7 years (MSI UK store)

Strengths and weaknesses

Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply

  • + Native 12V-2x6 cable and fully modular design
  • + Tight regulation, low ripple and working protections
  • + Quiet at low and moderate loads with zero-RPM mode
  • − Second-tier capacitors and MOSFETs, per Tom's Hardware
  • − Owners describe the cable bundle as minimal
  • − Owners question value against Corsair's own models

Skip it if:

  • Buyers who want premium-brand capacitors and MOSFETs inside the unit
  • Builders needing a large cable bundle for many drives or accessories
  • Anyone who wants ten-year warranty cover
Read the full Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply 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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