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be quiet! Silent Wings Pro 4 140mm PWM vs Noctua NF-A12x25 PWM: Comparison
be quiet! Silent Wings Pro 4 140mm PWM vs Noctua NF-A12x25 PWM: the airflow difference
The gap that matters here is airflow: be quiet! Silent Wings Pro 4 140mm PWM 97.4 CFM against Noctua NF-A12x25 PWM 60.09 CFM, which puts be quiet! Silent Wings Pro 4 140mm PWM 38% ahead. be quiet! Silent Wings Pro 4 140mm PWM also leads on static pressure, 3.64 mmH2O on the be quiet! Silent Wings Pro 4 140mm PWM versus 2.34 mmH2O on the Noctua NF-A12x25 PWM. Add max speed to that, 2400 RPM on the be quiet! Silent Wings Pro 4 140mm PWM versus 2000 RPM on the Noctua NF-A12x25 PWM, and the pattern holds. Warranty runs the same way, 5 years on the be quiet! Silent Wings Pro 4 140mm PWM versus 6 years on the Noctua NF-A12x25 PWM, another win for Noctua NF-A12x25 PWM.
Who each one is for
Buy the be quiet! Silent Wings Pro 4 140mm PWM for 280mm and 420mm AIO radiators and Quiet high-pressure builds, though it is not the pick for RGB-focused builds and open mesh cases where pressure is wasted. The Noctua NF-A12x25 PWM is the one to take for premium builds where noise and longevity matter most. It is equally the pick for buyers wanting the single best-tested all-around 120mm fan for any position. Avoid it for tight budgets filling an entire case, the Arctic P12 PST 5-pack is better value.
Frequently asked questions
Do the be quiet! Silent Wings Pro 4 140mm PWM and Noctua NF-A12x25 PWM differ on noise level?
Yes. Noise Level reads 36.8 dBA on the be quiet! Silent Wings Pro 4 140mm PWM versus 22.6 dBA on the Noctua NF-A12x25 PWM.
Is the Bearing Type the same on the be quiet! Silent Wings Pro 4 140mm PWM and Noctua NF-A12x25 PWM?
It is. Both are listed at Fluid Dynamic, so it is not a reason to pick one over the other.
Specs and benchmarks
Fan Size
- be quiet! Silent Wings Pro 4 140mm PWM
- 140 mm
- Noctua NF-A12x25 PWM
- 120 mm
Brand
- be quiet! Silent Wings Pro 4 140mm PWM
- be quiet!
- Noctua NF-A12x25 PWM
- Noctua
Model
- be quiet! Silent Wings Pro 4 140mm PWM
- Silent Wings Pro 4 140mm PWM
- Noctua NF-A12x25 PWM
- NF-A12x25 PWM
Bearing Type
- be quiet! Silent Wings Pro 4 140mm PWM
- Fluid Dynamic
- Noctua NF-A12x25 PWM
- Fluid Dynamic
Lighting
- be quiet! Silent Wings Pro 4 140mm PWM
- No RGB
- Noctua NF-A12x25 PWM
- None
Fan Thickness
- be quiet! Silent Wings Pro 4 140mm PWM
- 25 mm
- Noctua NF-A12x25 PWM
- 25 mm
Static Pressure
- be quiet! Silent Wings Pro 4 140mm PWM
- 3.64 mmH2OBest
- Noctua NF-A12x25 PWM
- 2.34 mmH2O-36%
Max Speed
- be quiet! Silent Wings Pro 4 140mm PWM
- 2400 RPMBest
- Noctua NF-A12x25 PWM
- 2000 RPM-17%
Airflow
- be quiet! Silent Wings Pro 4 140mm PWM
- 97.4 CFMBest
- Noctua NF-A12x25 PWM
- 60.09 CFM-38%
Noise Level
- be quiet! Silent Wings Pro 4 140mm PWM
- 36.8 dBA
- Noctua NF-A12x25 PWM
- 22.6 dBABest
PWM Control
- be quiet! Silent Wings Pro 4 140mm PWM
- Yes
- Noctua NF-A12x25 PWM
- Yes
Rated Life
- be quiet! Silent Wings Pro 4 140mm PWM
- 300000 hours
- Noctua NF-A12x25 PWM
- 150000 hours
Max Power Draw
- be quiet! Silent Wings Pro 4 140mm PWM
- 6 W
- Noctua NF-A12x25 PWM
- 1.68 WBest
Connector Type
- be quiet! Silent Wings Pro 4 140mm PWM
- 4-Pin PWM
- Noctua NF-A12x25 PWM
- 4-Pin PWM
Lighting Connector
- be quiet! Silent Wings Pro 4 140mm PWM
- None
- Noctua NF-A12x25 PWM
- None
RGB Lighting
- be quiet! Silent Wings Pro 4 140mm PWM
- No
- Noctua NF-A12x25 PWM
- No
Lighting Type
- be quiet! Silent Wings Pro 4 140mm PWM
- None
- Noctua NF-A12x25 PWM
- None
Colorway
- be quiet! Silent Wings Pro 4 140mm PWM
- Black
- Noctua NF-A12x25 PWM
- Brown And Beige
Cable Length
- be quiet! Silent Wings Pro 4 140mm PWM
- 500 mm
- Noctua NF-A12x25 PWM
- 200 mm
Weight
- be quiet! Silent Wings Pro 4 140mm PWM
- 258 g
- Noctua NF-A12x25 PWM
- 200 gBest
Warranty
- be quiet! Silent Wings Pro 4 140mm PWM
- 5 years-17%
- Noctua NF-A12x25 PWM
- 6 yearsBest
Which one should you pick?
Choose be quiet! Silent Wings Pro 4 140mm PWM if you want the higher static pressure (3.64 mmH2O vs 2.34 mmH2O), the higher max speed (2400 RPM vs 2000 RPM) and the higher airflow (97.4 CFM vs 60.09 CFM).
Choose Noctua NF-A12x25 PWM if you want the lower noise level (22.6 dBA vs 36.8 dBA) and the higher warranty (6 years vs 5 years).
Price comparison
| Retailer | be quiet! Silent Wings Pro 4 140mm PWM | Noctua NF-A12x25 PWM |
|---|---|---|
| Amazon | View on Amazon | 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! Silent Wings Pro 4 140mm PWM
9 / 10 Expert Rating
One of the strongest 140mm radiator fans available, at the cost of skipping RGB entirely.
Noctua NF-A12x25 PWM
9 / 10 Expert Rating
The reference benchmark for 120mm fans, best-tested all-around performance and quietest in its class, with class-leading bearing longevity.




