Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply vs Seasonic FOCUS GX-750 ATX 3.1

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

all judged against power supplies at a similar price

The Seasonic FOCUS GX-750 ATX 3.1 scores 7.3/10 overall, ahead of the Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply at 7.2/10.

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

The Seasonic FOCUS GX-750 ATX 3.1 leads on warranty.

They score the same on quality and protections and cabling and connectors.

The biggest difference is warranty, where the Seasonic FOCUS GX-750 ATX 3.1 scores 10/10 to the Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply's 7/10.

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

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Seasonic FOCUS GX-750 ATX 3.1

7.3/10verdict: good, not the best

The Seasonic FOCUS GX-750 ATX 3.1 suits builders who want a fully modular 750 W unit with a modern GPU power connector. It fits compact ATX cases thanks to its 140 mm depth and backs that with a 10-year warranty. It is best for a single-graphics-card desktop or an always-on machine where low standby draw matters.

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	Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply	Seasonic FOCUS GX-750 ATX 3.1
Quality and protections	30%	7/10	7/10
Efficiency	20%	8/10	7/10
Cabling and connectors	20%	7/10	7/10
Noise	15%	7/10	6/10
Warranty	15%	7/10	10/10
Overall		7.2/10	7.3/10

Specifications

Spec	Corsair RM1000e (2025) RMe Series Fully Modular ATX 3.1 Power Supply	Seasonic FOCUS GX-750 ATX 3.1
Rated output (W)	1000 W rated continuous output; +12V rail 83.3 A; +3.3V and +5V 150 W each; +5VSB 15 W	750 W
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; Cybenetics Platinum listed on v5 page
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x support	ATX, 140 x 150 x 86 mm; ATX 3.1 certified; PCIe 5.1 compliant	ATX/EPS, 140 mm depth
Modular cabling (fully, semi or non-modular)	Fully modular	Fully 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)	2× EPS, 2× PCIe 6+2-pin, 1× PCIe 12+4-pin (600 W), 8× SATA on 2 cables, 3× Molex on 1 cable (v4 model); native 12V-2×6 cable (v5)
Fan size and zero-fan mode	120 mm rifle-bearing fan with zero-RPM mode (fan off at low and moderate loads, per Corsair)	135 mm fluid dynamic bearing, Digital Hybrid Fan Control
Warranty (years)	7 years	10 years

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 ›

Seasonic FOCUS GX-750 ATX 3.1

+ Ten-year warranty
+ Fully modular with 12+4-pin or 12V-2×6 cable
+ Standby draw measured under 0.06 W
− Only two PCIe 6+2-pin connectors
− One owner found it noisy in normal fan mode
− Connector details differ between v4 and v5 revisions

Skip it if:

Builders planning several graphics cards that each need PCIe 8-pin cables
Buyers who want the quietest possible unit in normal fan mode

Read the full Seasonic FOCUS GX-750 ATX 3.1 review ›

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