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be quiet! Pure Power 12 750W (BP003EU) 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 NZXT C850 Gold ATX 3.1 scores 6.7/10 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 quality and protections and warranty.

The NZXT C850 Gold ATX 3.1 leads on cabling and connectors.

They score the same on efficiency and noise.

The biggest difference is cabling and connectors, where the NZXT C850 Gold ATX 3.1 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 (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

CriterionWeightbe quiet! Pure Power 12 750W (BP003EU)NZXT C850 Gold ATX 3.1
Quality and protections30%6/105/10
Efficiency20%7/107/10
Cabling and connectors20%4/107/10
Noise15%7/107/10
Warranty15%10/109/10
Overall6.6/106.7/10

Specifications

Specbe quiet! Pure Power 12 750W (BP003EU)NZXT C850 Gold ATX 3.1
Rated output (W)750W continuous, 820W peak; single 12V rail, 62.5A on +12V1, max combined 12V 750W850 W
Efficiency rating (80 Plus or Cybenetics)80 PLUS Gold, up to 92.8%80 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 supportATX, ATX 3.1 compliant, PCIe 5.1 compatibleATX 3.1, 150 x 86 x 160 mm
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 total1x 16-pin 12V-2x6 (rated up to 600 W per NZXT) and 3x 8-pin (6+2) PCIe
Fan size and zero-fan mode120mm 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%135 mm fluid dynamic bearing, PWM, 2,300 RPM ±10%, maximum noise 44.5 dBA, Zero RPM mode; silent below 50% load
Warranty (years)10 years10 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 ›

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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