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Corsair RMe Series RM850e vs Lian Li SP750

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

all judged against power supplies at a similar price

The Corsair RMe Series RM850e scores 7.0/10 overall, ahead of the Lian Li SP750 at 5.9/10.

The Corsair RMe Series RM850e leads on quality and protections, cabling and connectors, noise and warranty.

The Lian Li SP750 leads on efficiency.

Corsair RMe Series RM850e

Corsair RMe Series RM850e

7.0/10verdict: good, not the best

The Corsair RM850e is an 850W ATX power supply for people building or upgrading a quiet desktop or workstation. It suits buyers who want a fully modular unit with a native 12V-2x6 cable and a seven-year warranty. It is less suited to builds that need many PCIe 8-pin cables or a low-load, always-on setup.

Typically about £94.99 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

Lian Li SP750

Lian Li SP750

5.9/10verdict: good, not the best

The Lian Li SP750 is a 750 W SFX power supply for compact builds that need a fully modular unit with an 80 PLUS Gold rating. It suits builders who want quiet running and flexible braided cables in a small case. It is a weaker fit for anyone who needs a native 12V-2x6 cable or many SATA connectors.

Typically about £109.99 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 RM850eLian Li SP750
Quality and protections30%7/106/10
Efficiency20%6/107/10
Cabling and connectors20%7/105/10
Noise15%8/106/10
Warranty15%7/105/10
Overall7.0/105.9/10

Specifications

SpecCorsair RMe Series RM850eLian Li SP750
Rated output (W)850W750 W maximum DC output; +12V 744 W; +3.3V/+5V 100 W combined
Efficiency rating (80 Plus or Cybenetics)Cybenetics Gold80 PLUS Gold
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x supportATXSFX, 100 x 63.5 x 125 mm (D x W x H)
Modular cabling (fully, semi or non-modular)Fully modularFully modular
Graphics card connectors (12V-2x6 / 12VHPWR and PCIe 8-pin count)2 x PCIe 8-pin (6+2), 1 x 12V-2x6, 2 x EPSThree PCIe 8-pin (6+2) outputs; one CPU, two SATA and one peripheral connector listed by manufacturer; no 12V-2x6 or 12VHPWR cable listed
Fan size and zero-fan mode120mm rifle-bearing fanOne 92 mm hydraulic-bearing fan; zero-RPM mode until 40% load
Warranty (years)7 years5 years

Strengths and weaknesses

Corsair RMe Series RM850e

  • + Quiet: 22.81 dBA average and consistent owner praise
  • + Fully modular with a native 12V-2x6 cable
  • + Ripple and regulation measured well by independent reviewers
  • − Only two PCIe 8-pin connectors
  • − Efficiency drops below 70% at 2% load, owners report
  • − Standard cable has no OTP; owners report 3.3V droop

Skip it if:

  • Builders who need more than two PCIe 8-pin connectors for multiple GPUs.
  • Buyers running a near-idle, always-on machine where efficiency at 2% load matters.
  • Anyone who wants over-temperature protection on the standard cable.
Read the full Corsair RMe Series RM850e review ›

Lian Li SP750

  • + Fully modular with braided cables
  • + 80 PLUS Gold; 90.23% efficiency measured at 808 W
  • + Several owners praise quiet operation
  • − No 12V-2x6 or 12VHPWR cable listed
  • − Some owners report fan spinning up at idle
  • − Only two SATA connectors listed

Skip it if:

  • Buyers with a new NVIDIA card who want a native 12V-2x6 cable
  • Builders with many SATA drives who need more than two connectors
  • Anyone who needs a fan that stays fully silent at idle
Read the full Lian Li SP750 review ›

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