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be quiet! Pure Power 12 550W vs Corsair CX550M: Comparison
What is the difference between be quiet! Pure Power 12 550W and Corsair CX550M?
The gap that matters here is warranty: be quiet! Pure Power 12 550W 10 years against Corsair CX550M 5 years, which puts be quiet! Pure Power 12 550W 50% ahead. be quiet! Pure Power 12 550W also leads on hold-up time, 16.6 ms on the be quiet! Pure Power 12 550W versus 11.1 ms on the Corsair CX550M.
Which should you buy, be quiet! Pure Power 12 550W or Corsair CX550M?
The be quiet! Pure Power 12 550W is the one to take 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 CX550M suits entry-level gaming builds under $700 total and GTX 1660 Super or RX 6600-class GPUs, though it is not built for high-end GPUs or multi-GPU setups and anyone wanting a fully modular 24-pin/EPS. 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. Our rating of the Corsair CX550M (6.9/10): A safe, unglamorous budget Bronze pick for entry-level gaming PCs that don't need Gold efficiency or full modularity.
Where the two are identical
Where they agree, they agree completely, wattage, fan size, form factor, +12v rail amperage and single +12v rail included, so the decision does not turn on any of those. They match on 6 further specifications as well.
Which is cheaper, be quiet! Pure Power 12 550W or Corsair CX550M?
Cost splits them too. Corsair CX550M sits at $54.99, be quiet! Pure Power 12 550W at $74.99, 36% more.
Frequently asked questions
Do the be quiet! Pure Power 12 550W and Corsair CX550M differ on 80 plus rating?
Yes. 80 PLUS Rating reads Gold on the be quiet! Pure Power 12 550W versus Bronze on the Corsair CX550M.
Is the Zero-RPM Mode the same on the be quiet! Pure Power 12 550W and Corsair CX550M?
It is. Both are listed at No, 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 CX550M
- Corsair
Wattage
- be quiet! Pure Power 12 550W
- 550 W
- Corsair CX550M
- 550 W
80 PLUS Rating
- be quiet! Pure Power 12 550W
- Gold
- Corsair CX550M
- Bronze
Model Number
- be quiet! Pure Power 12 550W
- Pure Power 12 550W
- Corsair CX550M
- CX550M
ATX Standard
- be quiet! Pure Power 12 550W
- ATX 3.1
- Corsair CX550M
- ATX 2.x
Form Factor
- be quiet! Pure Power 12 550W
- ATX
- Corsair CX550M
- ATX
+12V Rail Amperage
- be quiet! Pure Power 12 550W
- 45.8 A
- Corsair CX550M
- 45.8 A
Single +12V Rail
- be quiet! Pure Power 12 550W
- Yes
- Corsair CX550M
- Yes
12V-2x6 Connectors
- be quiet! Pure Power 12 550W
- 1
- Corsair CX550M
- 0
Hold-Up Time
- be quiet! Pure Power 12 550W
- 16.6 ms
- Corsair CX550M
- 11.1 ms-33%
Zero-RPM Mode
- be quiet! Pure Power 12 550W
- No
- Corsair CX550M
- No
Sleeved Cables
- be quiet! Pure Power 12 550W
- Yes
- Corsair CX550M
- No
PCIe 8-pin Connectors
- be quiet! Pure Power 12 550W
- 2
- Corsair CX550M
- 2
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 CX550M
- 1x 24-pin ATX (fixed), 1x EPS 4+4 (fixed), 2x PCIe 6+2-pin, 6x SATA, 4x Molex
Fan Size
- be quiet! Pure Power 12 550W
- 120 mm
- Corsair CX550M
- 120 mm
Fan Model / Bearing
- be quiet! Pure Power 12 550W
- 120mm be quiet! fan, rifle bearing
- Corsair CX550M
- 120mm rifle bearing (HA1225H12F-Z)
OEM / Platform
- be quiet! Pure Power 12 550W
- HEC
- Corsair CX550M
- CWT
EPS 8-pin Connectors
- be quiet! Pure Power 12 550W
- 1
- Corsair CX550M
- 1
SATA Connectors
- be quiet! Pure Power 12 550W
- 5
- Corsair CX550M
- 6
Molex Connectors
- be quiet! Pure Power 12 550W
- 1
- Corsair CX550M
- 4
Length
- be quiet! Pure Power 12 550W
- 160 mm
- Corsair CX550M
- 140 mm
Colour
- be quiet! Pure Power 12 550W
- Black
- Corsair CX550M
- Black
Fan Bearing
- be quiet! Pure Power 12 550W
- Rifle
- Corsair CX550M
- Rifle
MTBF
- be quiet! Pure Power 12 550W
- 100000 hours
- Corsair CX550M
- 100000 hours
Modularity
- be quiet! Pure Power 12 550W
- Non-Modular
- Corsair CX550M
- Semi-Modular
Protections
- be quiet! Pure Power 12 550W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- Corsair CX550M
- OCP, OVP, SCP, OTP
Price
- be quiet! Pure Power 12 550W
- 74.99 USD
- Corsair CX550M
- 54.99 USD
Warranty
- be quiet! Pure Power 12 550W
- 10 yearsBest
- Corsair CX550M
- 5 years-50%
Which one should you pick?
Choose be quiet! Pure Power 12 550W if you want the higher wattage (550 W vs 550 W), the higher Hold-Up time (16.6 ms vs 11.1 ms) and the higher PCIe 8-pin connectors (2 vs 2).
Choose Corsair CX550M if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | be quiet! Pure Power 12 550W | Corsair CX550M |
|---|---|---|
| Amazon | $74.99 View on Amazon | $54.99 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.
Corsair CX550M
6.9 / 10 Expert Rating
A safe, unglamorous budget Bronze pick for entry-level gaming PCs that don't need Gold efficiency or full modularity.