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be quiet! Pure Power 12 M 850W vs FSP Hydro K PRO 750W: Comparison
be quiet! Pure Power 12 M 850W vs FSP Hydro K PRO 750W: the warranty difference
Warranty is where these two genuinely part company, be quiet! Pure Power 12 M 850W 10 years against FSP Hydro K PRO 750W 5 years, a 50% lead for be quiet! Pure Power 12 M 850W. be quiet! Pure Power 12 M 850W also leads on wattage, 850 W on the be quiet! Pure Power 12 M 850W versus 750 W on the FSP Hydro K PRO 750W. Add hold-up time to that, 20.6 ms on the be quiet! Pure Power 12 M 850W versus 17 ms on the FSP Hydro K PRO 750W, and the pattern holds.
Which should you buy, be quiet! Pure Power 12 M 850W or FSP Hydro K PRO 750W?
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 not the pick for budget builds where a 550-650W unit would be sufficient and extreme dual-GPU or workstation rigs needing 1200W+. The FSP Hydro K PRO 750W is the one to take for anyone who wants semi-modular cabling with standard PCIe connectors and systems where a 3-year warranty and Bronze-tier efficiency matter, though it is not built for builds needing more than 750W of continuous headroom and buyers who need the smallest possible SFX/SFX-L footprint. It is equally the pick for builders targeting a popular RTX 4070 Ti / RTX 5070-class gaming build.
be quiet! Pure Power 12 M 850W vs FSP Hydro K PRO 750W price
The be quiet! Pure Power 12 M 850W asks 100% more, $130 against $64.99 for the FSP Hydro K PRO 750W.
Frequently asked questions
Do the be quiet! Pure Power 12 M 850W and FSP Hydro K PRO 750W differ on modularity?
Yes. Modularity reads Fully Modular on the be quiet! Pure Power 12 M 850W versus Semi-Modular on the FSP Hydro K PRO 750W.
Is the Fan Size the same on the be quiet! Pure Power 12 M 850W and FSP Hydro K PRO 750W?
It is. Both are listed at 120 mm, so it is not a reason to pick one over the other.
Which is cheaper, be quiet! Pure Power 12 M 850W or FSP Hydro K PRO 750W?
The be quiet! Pure Power 12 M 850W asks 100% more, $130 against $64.99 for the FSP Hydro K PRO 750W.
Specs and benchmarks
Brand
- be quiet! Pure Power 12 M 850W
- be quiet!
- FSP Hydro K PRO 750W
- FSP
Wattage
- be quiet! Pure Power 12 M 850W
- 850 WBest
- FSP Hydro K PRO 750W
- 750 W-12%
80 PLUS Rating
- be quiet! Pure Power 12 M 850W
- Gold
- FSP Hydro K PRO 750W
- Bronze
Model Number
- be quiet! Pure Power 12 M 850W
- Pure Power 12 M 850W
- FSP Hydro K PRO 750W
- Hydro K PRO 750W
ATX Standard
- be quiet! Pure Power 12 M 850W
- ATX 3.0
- FSP Hydro K PRO 750W
- ATX 2.x
Form Factor
- be quiet! Pure Power 12 M 850W
- ATX
- FSP Hydro K PRO 750W
- ATX
Single +12V Rail
- be quiet! Pure Power 12 M 850W
- No
- FSP Hydro K PRO 750W
- Yes
Cybenetics Efficiency
- be quiet! Pure Power 12 M 850W
- Platinum
- FSP Hydro K PRO 750W
- Bronze
Cybenetics Noise
- be quiet! Pure Power 12 M 850W
- A-
- FSP Hydro K PRO 750W
- Standard
12V-2x6 Connectors
- be quiet! Pure Power 12 M 850W
- 1
- FSP Hydro K PRO 750W
- 0
Hold-Up Time
- be quiet! Pure Power 12 M 850W
- 20.6 ms
- FSP Hydro K PRO 750W
- 17 ms-17%
Zero-RPM Mode
- be quiet! Pure Power 12 M 850W
- No
- FSP Hydro K PRO 750W
- No
Sleeved Cables
- be quiet! Pure Power 12 M 850W
- Yes
- FSP Hydro K PRO 750W
- No
PCIe 8-pin Connectors
- be quiet! Pure Power 12 M 850W
- 4
- FSP Hydro K PRO 750W
- 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
- FSP Hydro K PRO 750W
- 1x 24-pin ATX, 2x EPS 4+4, 4x PCIe 6+2-pin, 8x SATA, 2x Molex, 1x floppy
Fan Size
- be quiet! Pure Power 12 M 850W
- 120 mm
- FSP Hydro K PRO 750W
- 120 mm
Fan Model / Bearing
- be quiet! Pure Power 12 M 850W
- 120mm rifle bearing (BQ QF2-12025-HS)
- FSP Hydro K PRO 750W
- 120mm hydraulic bearing (HYB)
OEM / Platform
- be quiet! Pure Power 12 M 850W
- HEC
- FSP Hydro K PRO 750W
- FSP
EPS 8-pin Connectors
- be quiet! Pure Power 12 M 850W
- 2
- FSP Hydro K PRO 750W
- 2
SATA Connectors
- be quiet! Pure Power 12 M 850W
- 6
- FSP Hydro K PRO 750W
- 8
Molex Connectors
- be quiet! Pure Power 12 M 850W
- 2
- FSP Hydro K PRO 750W
- 2
Cable Lengths
- be quiet! Pure Power 12 M 850W
- 24-pin 550mm, EPS 600mm, 12VHPWR 600mm, PCIe 500+150mm, SATA 500+150+150+150mm
- FSP Hydro K PRO 750W
- ATX 550mm, EPS 600mm, PCIe 600mm, SATA 500-750mm
Length
- be quiet! Pure Power 12 M 850W
- 160 mm
- FSP Hydro K PRO 750W
- 140 mm
Colour
- be quiet! Pure Power 12 M 850W
- Black
- FSP Hydro K PRO 750W
- Black
Fan Bearing
- be quiet! Pure Power 12 M 850W
- Rifle
- FSP Hydro K PRO 750W
- Hydro
MTBF
- be quiet! Pure Power 12 M 850W
- 100000 hours
- FSP Hydro K PRO 750W
- 100000 hours
Modularity
- be quiet! Pure Power 12 M 850W
- Fully Modular
- FSP Hydro K PRO 750W
- Semi-Modular
Protections
- be quiet! Pure Power 12 M 850W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- FSP Hydro K PRO 750W
- OCP, OVP, SCP, OPP
Price
- be quiet! Pure Power 12 M 850W
- 129.99 USD
- FSP Hydro K PRO 750W
- 64.99 USD
Warranty
- be quiet! Pure Power 12 M 850W
- 10 yearsBest
- FSP Hydro K PRO 750W
- 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 750 W), the higher Hold-Up time (20.6 ms vs 17 ms) and the higher PCIe 8-pin connectors (4 vs 4).
Choose FSP Hydro K PRO 750W if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | be quiet! Pure Power 12 M 850W | FSP Hydro K PRO 750W |
|---|---|---|
| Amazon | $129.99 View on Amazon | |
| Consumercarts listing | $64.99 View on Consumercarts listing |
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.
FSP Hydro K PRO 750W
7 / 10 Expert Rating
A solid 750W Bronze-rated ATX unit for a popular RTX 4070 Ti / RTX 5070-class gaming build, held back only by the usual mid-tier compromises on cabling and OEM sourcing.