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Corsair RMe Series RM850e vs NZXT C850 Gold ATX 3.1

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 NZXT C850 Gold ATX 3.1 at 6.7/10.

The Corsair RMe Series RM850e leads on quality and protections and noise.

The NZXT C850 Gold ATX 3.1 leads on efficiency and warranty.

They score the same on cabling and connectors.

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

NZXT C850 Gold ATX 3.1

NZXT C850 Gold ATX 3.1

6.7/10verdict: good, not the best

The NZXT C850 Gold ATX 3.1 is an 850 W fully modular power supply for single-GPU builds. It suits buyers who want a native 12V-2x6 cable and a quiet fan at low and moderate loads. The 10-year warranty adds reassurance for a unit meant to stay in a case for a long time.

Typically about £110.74 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 RM850eNZXT C850 Gold ATX 3.1
Quality and protections30%7/105/10
Efficiency20%6/107/10
Cabling and connectors20%7/107/10
Noise15%8/107/10
Warranty15%7/109/10
Overall7.0/106.7/10

Specifications

SpecCorsair RMe Series RM850eNZXT C850 Gold ATX 3.1
Rated output (W)850W850 W
Efficiency rating (80 Plus or Cybenetics)Cybenetics Gold80 PLUS Gold and Cybenetics Gold; measured at 115 V: 85.8% at 10% load, 89.5% at 20%, 91.7% at 50%, 89.2% at 100%
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x supportATXATX 3.1, 150 x 86 x 160 mm
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 EPS1x 16-pin 12V-2x6 (rated up to 600 W per NZXT) and 3x 8-pin (6+2) PCIe
Fan size and zero-fan mode120mm rifle-bearing fan135 mm fluid dynamic bearing, PWM, 2,300 RPM ±10%, maximum noise 44.5 dBA, Zero RPM mode; silent below 50% load
Warranty (years)7 years10 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 ›

NZXT C850 Gold ATX 3.1

  • + 10-year warranty
  • + Fully modular with native 12V-2x6 cable
  • + Fan stays off below 50% load
  • − Only three 8-pin PCIe connectors
  • − Maximum noise rated at 44.5 dBA
  • − Efficiency drops to 85.8% at 10% load

Skip it if:

  • Builders running several GPUs that need more than three 8-pin PCIe connectors
  • Buyers who want Platinum-level efficiency at very low load
  • Anyone who needs published ripple and regulation data before buying
Read the full NZXT C850 Gold ATX 3.1 review ›

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