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Corsair RMe Series RM750e 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 RMe Series RM750e at 7.2/10.

The Corsair RMe Series RM750e leads on cabling and connectors and noise.

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

They score the same on quality and protections.

The biggest difference is warranty, where the Seasonic FOCUS GX-750 ATX 3.1 scores 10/10 to the Corsair RMe Series RM750e's 7/10.

Corsair RMe Series RM750e

Corsair RMe Series RM750e

7.2/10verdict: good, not the best

The RM750e is for people building a single-GPU desktop who want a fully modular ATX 3.1 power supply with a native 12V-2x6 cable. It suits builders who value a quiet fan that stays off at idle and a 7-year warranty. It is a weaker fit for machines that idle around the clock, where owners report poor low-load efficiency.

Typically about £89.99 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

Seasonic FOCUS GX-750 ATX 3.1

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 (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 RM750eSeasonic FOCUS GX-750 ATX 3.1
Quality and protections30%7/107/10
Efficiency20%6/107/10
Cabling and connectors20%8/107/10
Noise15%8/106/10
Warranty15%7/1010/10
Overall7.2/107.3/10

Specifications

SpecCorsair RMe Series RM750eSeasonic FOCUS GX-750 ATX 3.1
Rated output (W)750 W continuous; +12V rail rated 62.5 A750 W
Efficiency rating (80 Plus or Cybenetics)Cybenetics Gold; up to 89% overall efficiency (manufacturer claim)80 PLUS Gold; Cybenetics Platinum listed on v5 page
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x supportATX; ATX 3.1 certified; PCIe 5.1 compatibleATX/EPS, 140 mm depth
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 (12+4) cable, 650 mm; one 12V-2x6 to dual PCIe 8-pin adapter-style cable; one PCIe 8-pin (6+2) cable (three PCIe 8-pin outputs in total); two EPS 8-pin; six SATA2× 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 mode120 mm rifle-bearing fan; Zero RPM mode135 mm fluid dynamic bearing, Digital Hybrid Fan Control
Warranty (years)7 years10 years

Strengths and weaknesses

Corsair RMe Series RM750e

  • + Native 12V-2x6 cable on a fully modular unit
  • + Fan stays off at idle; Cybenetics noise rating A
  • + Seven-year warranty with all main protections listed
  • − Owners report weak low-load efficiency
  • − Some reviewers raise ripple and transient response concerns
  • − Owners call the MSRP uncompetitive

Skip it if:

  • Anyone building an always-on server or low-power PC that idles most of the time.
  • Buyers who need many SATA connectors for a large drive array.
  • Buyers who want the lowest ripple and the strongest transient response.
Read the full Corsair RMe Series RM750e 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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