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be quiet! Pure Power 12 M 850W vs Gigabyte UD850GM PG5: Comparison
What is the difference between be quiet! Pure Power 12 M 850W and Gigabyte UD850GM PG5?
Start with warranty, because it is the widest measured gap between them: be quiet! Pure Power 12 M 850W 10 years against Gigabyte UD850GM PG5 5 years, 50% in favour of be quiet! Pure Power 12 M 850W. be quiet! Pure Power 12 M 850W also leads on hold-up time, 20.6 ms on the be quiet! Pure Power 12 M 850W versus 16 ms on the Gigabyte UD850GM PG5.
Who each one is for
The be quiet! Pure Power 12 M 850W suits high-end single-GPU gaming builds (RTX 4080/4090-class cards) and builders who want Gold-tier efficiency with future GPU upgrade headroom, though it is the wrong buy for budget builds where a 550-650W unit would be sufficient and extreme dual-GPU or workstation rigs needing 1200W+. The Gigabyte UD850GM PG5 is the one to take for Gigabyte AORUS-themed builds and RTX 4070 Ti/4080-class GPUs wanting native ATX 3.1, though it is not the pick for buyers wanting the most field-proven, established brand and Multi-GPU workstation loads.
What be quiet! Pure Power 12 M 850W and Gigabyte UD850GM PG5 have in common
Where they agree, they agree completely, wattage, modularity, fan size, 80 plus rating and atx standard included, so the decision does not turn on any of those. They match on 8 further specifications as well.
be quiet! Pure Power 12 M 850W vs Gigabyte UD850GM PG5 price
At the last price check the Gigabyte UD850GM PG5 was $110 and the be quiet! Pure Power 12 M 850W $130, a 18% premium.
Frequently asked questions
Do the be quiet! Pure Power 12 M 850W and Gigabyte UD850GM PG5 differ on single +12v rail?
Yes. Single +12V Rail reads No on the be quiet! Pure Power 12 M 850W versus Yes on the Gigabyte UD850GM PG5.
Is the Form Factor the same on the be quiet! Pure Power 12 M 850W and Gigabyte UD850GM PG5?
It is. Both are listed at ATX, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Pure Power 12 M 850W
- be quiet!
- Gigabyte UD850GM PG5
- Gigabyte
Wattage
- be quiet! Pure Power 12 M 850W
- 850 W
- Gigabyte UD850GM PG5
- 850 W
80 PLUS Rating
- be quiet! Pure Power 12 M 850W
- Gold
- Gigabyte UD850GM PG5
- Gold
Model Number
- be quiet! Pure Power 12 M 850W
- Pure Power 12 M 850W
- Gigabyte UD850GM PG5
- UD850GM PG5
ATX Standard
- be quiet! Pure Power 12 M 850W
- ATX 3.0
- Gigabyte UD850GM PG5
- ATX 3.0
Form Factor
- be quiet! Pure Power 12 M 850W
- ATX
- Gigabyte UD850GM PG5
- ATX
Single +12V Rail
- be quiet! Pure Power 12 M 850W
- No
- Gigabyte UD850GM PG5
- Yes
Cybenetics Efficiency
- be quiet! Pure Power 12 M 850W
- Platinum
- Gigabyte UD850GM PG5
- Gold
Cybenetics Noise
- be quiet! Pure Power 12 M 850W
- A-
- Gigabyte UD850GM PG5
- A-
PCIe CEM Standard
- be quiet! Pure Power 12 M 850W
- PCIe 5.0
- Gigabyte UD850GM PG5
- PCIe 5.0
12V-2x6 Connectors
- be quiet! Pure Power 12 M 850W
- 1
- Gigabyte UD850GM PG5
- 1
Hold-Up Time
- be quiet! Pure Power 12 M 850W
- 20.6 ms
- Gigabyte UD850GM PG5
- 16 ms-22%
Sleeved Cables
- be quiet! Pure Power 12 M 850W
- Yes
- Gigabyte UD850GM PG5
- No
PCIe 8-pin Connectors
- be quiet! Pure Power 12 M 850W
- 4
- Gigabyte UD850GM PG5
- 4
Connector Count
- be quiet! Pure Power 12 M 850W
- 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 1x 12VHPWR (600W), 4x PCIe 6+2-pin, 6x SATA, 2x Molex
- Gigabyte UD850GM PG5
- 1x 24-pin ATX, 2x EPS 4+4, 1x 16-pin 12VHPWR (600W native), 4x PCIe 6+2-pin, 8x SATA, 3x Molex, 1x floppy
Fan Size
- be quiet! Pure Power 12 M 850W
- 120 mm
- Gigabyte UD850GM PG5
- 120 mm
Fan Model / Bearing
- be quiet! Pure Power 12 M 850W
- 120mm rifle bearing (BQ QF2-12025-HS)
- Gigabyte UD850GM PG5
- 120mm hydraulic bearing
OEM / Platform
- be quiet! Pure Power 12 M 850W
- HEC
- Gigabyte UD850GM PG5
- CWT
EPS 8-pin Connectors
- be quiet! Pure Power 12 M 850W
- 2
- Gigabyte UD850GM PG5
- 2
SATA Connectors
- be quiet! Pure Power 12 M 850W
- 6
- Gigabyte UD850GM PG5
- 8
Molex Connectors
- be quiet! Pure Power 12 M 850W
- 2
- Gigabyte UD850GM PG5
- 3
Cable Lengths
- be quiet! Pure Power 12 M 850W
- 24-pin 550mm, EPS 600mm, 12VHPWR 600mm, PCIe 500+150mm, SATA 500+150+150+150mm
- Gigabyte UD850GM PG5
- 24-pin 610mm, EPS 600+200mm, 16-pin 700mm, PCIe 600+150mm
Length
- be quiet! Pure Power 12 M 850W
- 160 mm
- Gigabyte UD850GM PG5
- 140 mm
Colour
- be quiet! Pure Power 12 M 850W
- Black
- Gigabyte UD850GM PG5
- Black
Fan Bearing
- be quiet! Pure Power 12 M 850W
- Rifle
- Gigabyte UD850GM PG5
- Hydro
MTBF
- be quiet! Pure Power 12 M 850W
- 100000 hours
- Gigabyte UD850GM PG5
- 100000 hours
Modularity
- be quiet! Pure Power 12 M 850W
- Fully Modular
- Gigabyte UD850GM PG5
- Fully Modular
Protections
- be quiet! Pure Power 12 M 850W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- Gigabyte UD850GM PG5
- OVP, OPP, SCP, UVP, OCP, OTP
Price
- be quiet! Pure Power 12 M 850W
- 129.99 USD
- Gigabyte UD850GM PG5
- 109.99 USD
Warranty
- be quiet! Pure Power 12 M 850W
- 10 yearsBest
- Gigabyte UD850GM PG5
- 5 years-50%
Which one should you pick?
Choose be quiet! Pure Power 12 M 850W if you want the higher wattage (850 W vs 850 W), the higher 12V-2x6 connectors (1 vs 1) and the higher Hold-Up time (20.6 ms vs 16 ms).
Choose Gigabyte UD850GM PG5 if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | be quiet! Pure Power 12 M 850W | Gigabyte UD850GM PG5 |
|---|---|---|
| Amazon | $129.99 View on Amazon | $109.99 View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
be quiet! Pure Power 12 M 850W
8.2 / 10 Expert Rating
The 850W Pure Power 12 M tops out the modular M-series, giving budget-focused builders a native 12V-2x6 connector and Gold efficiency without stepping up to the pricier Straight Power line.
Gigabyte UD850GM PG5
8 / 10 Expert Rating
A modern, well-specced ATX 3.1 Gold unit for Gigabyte-themed builds, docked slightly for being a newer, less field-tested platform.




