Cooler Master MWE Gold 850 V3 ATX 3.1 vs Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply

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

all judged against power supplies at a similar price

The Cooler Master MWE Gold 850 V3 ATX 3.1 scores 7.5/10 overall, ahead of the Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply at 7.2/10.

The Cooler Master MWE Gold 850 V3 ATX 3.1 leads on cabling and connectors and warranty.

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

They score the same on quality and protections.

The biggest difference is warranty, where the Cooler Master MWE Gold 850 V3 ATX 3.1 scores 10/10 to the Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply's 7/10.

Cooler Master MWE Gold 850 V3 ATX 3.1

7.5/10verdict: buy

The MWE Gold 850 V3 ATX 3.1 suits builders who want a fully modular 850W power supply with a native 12V-2x6 cable for a gaming or workstation PC. It also fits anyone who values a long warranty and a platform maker with independent measurements behind it. It is less suited to buyers who want a silent PSU under heavy load or very flexible cables.

Typically about £69.99 in the UK when we researched itSearch Amazon UK

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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

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

Scores, criterion by criterion

Criterion	Weight	Cooler Master MWE Gold 850 V3 ATX 3.1	Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply
Quality and protections	30%	7/10	7/10
Efficiency	20%	7/10	8/10
Cabling and connectors	20%	8/10	7/10
Noise	15%	6/10	7/10
Warranty	15%	10/10	7/10
Overall		7.5/10	7.2/10

Specifications

Spec	Cooler Master MWE Gold 850 V3 ATX 3.1	Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply
Rated output (W)	850 W	1000 W rated continuous output; +12V rail 83.3 A; +3.3V and +5V 150 W each; +5VSB 15 W
Efficiency rating (80 Plus or Cybenetics)	80 PLUS Gold	80 PLUS Gold and Cybenetics Gold per Corsair; Hardware Busters measured Cybenetics Platinum (89.483% at 115 V, 91.576% at 230 V)
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x support	ATX 3.1	ATX, 140 x 150 x 86 mm; ATX 3.1 certified; PCIe 5.1 compliant
Modular cabling (fully, semi or non-modular)	Fully modular	Fully modular
Graphics card connectors (12V-2x6 / 12VHPWR and PCIe 8-pin count)	1x 12V-2x6, 4x PCIe 8-pin (6+2), 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 6x SATA, 2x peripheral 4-pin	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)
Fan size and zero-fan mode	120 mm, HDB bearing, rated 2500 RPM, zero-RPM mode	120 mm rifle-bearing fan with zero-RPM mode (fan off at low and moderate loads, per Corsair)
Warranty (years)	10 years	7 years

Strengths and weaknesses

Cooler Master MWE Gold 850 V3 ATX 3.1

+ 10-year warranty
+ Fully modular with native 12V-2x6 cable
+ Quiet at low load thanks to zero-RPM mode
− Owners report fan noise at high load

Skip it if:

Buyers who need a near-silent PSU under sustained heavy load.
Builders in tight cases who want flexible, easy-to-route cables.

Read the full Cooler Master MWE Gold 850 V3 ATX 3.1 review ›

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 ›

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