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be quiet! Pure Power 12 750W (BP003EU) vs Seasonic FOCUS GX-850 ATX 3 (2024)

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

all judged against power supplies at a similar price

The Seasonic FOCUS GX-850 ATX 3 (2024) scores 6.8/10 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 noise.

The Seasonic FOCUS GX-850 ATX 3 (2024) leads on efficiency and cabling and connectors.

They score the same on warranty.

The biggest difference is cabling and connectors, where the Seasonic FOCUS GX-850 ATX 3 (2024) 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

Seasonic FOCUS GX-850 ATX 3 (2024)

6.8/10verdict: good, not the best

The Seasonic FOCUS GX-850 ATX 3 (2024) is for builders who want a fully modular 850 W unit with a native 12V-2x6 cable for a current graphics card. It suits buyers who value a 10-year warranty and strong efficiency figures on 230V mains. It is a weaker fit for anyone who puts tight voltage regulation or a consistently quiet fan first.

Typically about £144.95 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)Seasonic FOCUS GX-850 ATX 3 (2024)
Quality and protections30%6/105/10
Efficiency20%7/108/10
Cabling and connectors20%4/107/10
Noise15%7/105/10
Warranty15%10/1010/10
Overall6.6/106.8/10

Specifications

Specbe quiet! Pure Power 12 750W (BP003EU)Seasonic FOCUS GX-850 ATX 3 (2024)
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
Form factor (ATX or SFX) and ATX 3.x / PCIe 5.x supportATX, ATX 3.1 compliant, PCIe 5.1 compatibleATX
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 12V-2x6 (native); 1x PCIe 12+4 pin (600W) per Hardware Busters; 3x PCIe 6+2 pin; 8x SATA; 3x Molex
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 fan; semi-passive mode (selectable)
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 ›

Seasonic FOCUS GX-850 ATX 3 (2024)

  • + 10-year warranty, praised by owners
  • + Cybenetics Platinum efficiency despite the Gold label
  • + Fully modular with native 12V-2x6 cable
  • − Loose 12V load regulation per Hardware Busters
  • − Fan curve complaints; spins up early for some owners
  • − Cables reported as bulky or short

Skip it if:

  • Buyers who put tight 12 V voltage regulation first
  • Builders who need a consistently silent fan at low load
  • Anyone with a compact case who needs long, flexible cables
Read the full Seasonic FOCUS GX-850 ATX 3 (2024) review ›

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