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be quiet! Pure Power 12 550W vs Corsair RM850e: Comparison
What is the difference between be quiet! Pure Power 12 550W and Corsair RM850e?
Start with wattage, because it is the widest measured gap between them: be quiet! Pure Power 12 550W 550 W against Corsair RM850e 850 W, 35% in favour of Corsair RM850e. Add warranty to that, 10 years on the be quiet! Pure Power 12 550W versus 7 years on the Corsair RM850e, and the pattern holds. Corsair RM850e also leads on pcie 8-pin connectors, 2 on the be quiet! Pure Power 12 550W versus 3 on the Corsair RM850e.
Who each one is for
Buy the be quiet! Pure Power 12 550W for Quiet mainstream gaming builds and RTX 4060/RX 7600-class GPUs, though it is not the pick for anyone wanting fully modular cables and high-end or multi-GPU builds. The Corsair RM850e suits RTX 4070 Ti Super / 4080 builds and buyers wanting native 12V-2x6 at a mid-range price, though it is not built for Dual-GPU or workstation loads and buyers wanting sleeved cables. Our rating of the be quiet! Pure Power 12 550W (7.8/10): A quiet, Gold-rated 550W unit that's the right call for mainstream builds that don't need full modularity.
be quiet! Pure Power 12 550W vs Corsair RM850e price
At the last price check the be quiet! Pure Power 12 550W was $74.99 and the Corsair RM850e $130, a 73% premium.
What be quiet! Pure Power 12 550W and Corsair RM850e have in common
Everything else lines up. Fan size, 80 plus rating, atx standard, form factor and pcie cem standard read the same on both, so those are not worth weighing. They match on 4 further specifications as well.
Frequently asked questions
Do the be quiet! Pure Power 12 550W and Corsair RM850e differ on zero-rpm mode?
Yes. Zero-RPM Mode reads No on the be quiet! Pure Power 12 550W versus Yes on the Corsair RM850e.
Is the 12V-2x6 Connectors the same on the be quiet! Pure Power 12 550W and Corsair RM850e?
It is. Both are listed at 1, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Pure Power 12 550W
- be quiet!
- Corsair RM850e
- Corsair
Wattage
- be quiet! Pure Power 12 550W
- 550 W-35%
- Corsair RM850e
- 850 WBest
80 PLUS Rating
- be quiet! Pure Power 12 550W
- Gold
- Corsair RM850e
- Gold
Model Number
- be quiet! Pure Power 12 550W
- Pure Power 12 550W
- Corsair RM850e
- RM850e
ATX Standard
- be quiet! Pure Power 12 550W
- ATX 3.1
- Corsair RM850e
- ATX 3.1
Form Factor
- be quiet! Pure Power 12 550W
- ATX
- Corsair RM850e
- ATX
PCIe CEM Standard
- be quiet! Pure Power 12 550W
- PCIe 5.1
- Corsair RM850e
- PCIe 5.1
12V-2x6 Connectors
- be quiet! Pure Power 12 550W
- 1
- Corsair RM850e
- 1
Zero-RPM Mode
- be quiet! Pure Power 12 550W
- No
- Corsair RM850e
- Yes
PCIe 8-pin Connectors
- be quiet! Pure Power 12 550W
- 2-33%
- Corsair RM850e
- 3
Connector Count
- be quiet! Pure Power 12 550W
- 1x 24-pin ATX, 1x EPS 4+4, 1x 12V-2x6, 2x PCIe 6+2-pin, 5x SATA, 1x Molex (all fixed)
- Corsair RM850e
- 1x 24-pin ATX, 2x EPS 8-pin (4+4), 1x 12V-2x6 (12+4), 3x PCIe 6+2-pin (1 single cable + 2 via 12V-2x6-to-dual-8-pin cable), 6x SATA, 2x Molex
Fan Size
- be quiet! Pure Power 12 550W
- 120 mm
- Corsair RM850e
- 120 mm
EPS 8-pin Connectors
- be quiet! Pure Power 12 550W
- 1
- Corsair RM850e
- 2
SATA Connectors
- be quiet! Pure Power 12 550W
- 5
- Corsair RM850e
- 6
Molex Connectors
- be quiet! Pure Power 12 550W
- 1
- Corsair RM850e
- 2
Length
- be quiet! Pure Power 12 550W
- 160 mm
- Corsair RM850e
- 140 mm
Colour
- be quiet! Pure Power 12 550W
- Black
- Corsair RM850e
- Black
Fan Bearing
- be quiet! Pure Power 12 550W
- Rifle
- Corsair RM850e
- Rifle
MTBF
- be quiet! Pure Power 12 550W
- 100000 hours
- Corsair RM850e
- 100000 hours
Modularity
- be quiet! Pure Power 12 550W
- Non-Modular
- Corsair RM850e
- Fully Modular
Price
- be quiet! Pure Power 12 550W
- 74.99 USD
- Corsair RM850e
- 129.99 USD
Warranty
- be quiet! Pure Power 12 550W
- 10 yearsBest
- Corsair RM850e
- 7 years-30%
Which one should you pick?
Choose be quiet! Pure Power 12 550W if you want the higher 12V-2x6 connectors (1 vs 1), the higher MTBF (100000 hours vs 100000 hours) and the higher warranty (10 years vs 7 years).
Choose Corsair RM850e if you want the higher wattage (850 W vs 550 W) and the higher PCIe 8-pin connectors (3 vs 2).
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Corsair RM850e |
|---|---|---|
| Amazon | $74.99 View on Amazon | $129.99 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 550W
7.8 / 10 Expert Rating
A quiet, Gold-rated 550W unit that's the right call for mainstream builds that don't need full modularity.