be quiet! Pure Power 12 750W (BP003EU) 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 Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply scores 7.2/10 overall, ahead of the be quiet! Pure Power 12 750W (BP003EU) at 6.6/10.

The be quiet! Pure Power 12 750W (BP003EU) leads on warranty.

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

They score the same on noise.

The biggest difference is cabling and connectors, where the Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply scores 7/10 to the be quiet! Pure Power 12 750W (BP003EU)'s 4/10.

be quiet! Pure Power 12 750W (BP003EU)

6.6/10verdict: good, not the best

This is a 750W ATX 3.1 power supply for a single-GPU desktop where low noise and a long warranty matter more than cable tidiness. It suits builders who want a native 12V-2x6 connector and Gold efficiency and are happy with fixed cabling. It is a poor fit for multi-GPU builds or cases that need a minimal cable count.

Typically about £89.99 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	be quiet! Pure Power 12 750W (BP003EU)	Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply
Quality and protections	30%	6/10	7/10
Efficiency	20%	7/10	8/10
Cabling and connectors	20%	4/10	7/10
Noise	15%	7/10	7/10
Warranty	15%	10/10	7/10
Overall		6.6/10	7.2/10

Specifications

Spec	be quiet! Pure Power 12 750W (BP003EU)	Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply
Rated output (W)	750W continuous, 820W peak; single 12V rail, 62.5A on +12V1, max combined 12V 750W	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, up to 92.8%	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, ATX 3.1 compliant, PCIe 5.1 compatible	ATX, 140 x 150 x 86 mm; ATX 3.1 certified; PCIe 5.1 compliant
Modular cabling (fully, semi or non-modular)	Not modular (fixed cables)	Fully modular
Graphics card connectors (12V-2x6 / 12VHPWR and PCIe 8-pin count)	1 x PCIe 5.1 12V-2x6 (600W), 3 x PCIe 6+2-pin, 1 x 20+4-pin motherboard, 1 x P8 (8-pin CPU), 1 x P4+4 CPU, 6 x SATA, 1 x PATA, 8 cables total	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	120mm be quiet! rifle bearing fan, 1800 rpm max, 4-pole motor; 8.7 dB(A) at 10% and 20% load, 8.8 dB(A) at 50%, 22.5 dB(A) at 100%	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

be quiet! Pure Power 12 750W (BP003EU)

+ 10-year warranty
+ Native 12V-2x6 cable, ATX 3.1
+ Quiet fan: 8.7 dB(A) up to 20% load
− Non-modular, fixed cables
− Only three PCIe 6+2-pin connectors
− 68.4% efficiency at 2% load

Skip it if:

Builders who want fully modular cabling to keep a small case tidy.
Anyone running several graphics cards that need many 8-pin PCIe connectors.

Read the full be quiet! Pure Power 12 750W (BP003EU) 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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