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be quiet! Silent Wings 4 120mm PWM High-Speed vs Phanteks SK123-140 D-RGB: Comparison
be quiet! Silent Wings 4 120mm PWM vs Phanteks SK123-140 D-RGB static pressure compared
Static pressure is where these two genuinely part company, be quiet! Silent Wings 4 120mm PWM 3.96 mmH2O against Phanteks SK123-140 D-RGB 1.9 mmH2O, a 52% lead for be quiet! Silent Wings 4 120mm PWM. On airflow there is little in it, 76.7 CFM on the be quiet! Silent Wings 4 120mm PWM versus 74.0 CFM on the Phanteks SK123-140 D-RGB. The noise level figures are near enough to ignore, 31.2 dBA on the be quiet! Silent Wings 4 120mm PWM versus 29.7 dBA on the Phanteks SK123-140 D-RGB. They differ on fan size too, 120 mm on the be quiet! Silent Wings 4 120mm PWM versus 140 mm on the Phanteks SK123-140 D-RGB. be quiet! Silent Wings 4 120mm PWM also leads on max speed, 2500 RPM on the be quiet! Silent Wings 4 120mm PWM versus 1500 RPM on the Phanteks SK123-140 D-RGB.
Which should you buy, be quiet! Silent Wings 4 120mm PWM or Phanteks SK123-140 D-RGB?
Take the be quiet! Silent Wings 4 120mm PWM for builds needing more airflow than a standard Noctua fan provides and willing to trade a bit of acoustic headroom for it. It is not the one for Silent-first builds where the Noctua NF-A12x25 PWM's lower noise ceiling matters more than peak airflow. The Phanteks SK123-140 D-RGB suits 140mm case intake/exhaust and Phanteks case builds, though it is not the pick for radiator duty and Silent builds. Our rating of the be quiet! Silent Wings 4 120mm PWM (8/10): more airflow than the quiet-first competition, with a bearing rating built for a decade of running. Our rating of the Phanteks SK123-140 D-RGB (7/10): A well-rounded 140mm intake fan for Phanteks cases that want lighting without sacrificing airflow.
What be quiet! Silent Wings 4 120mm PWM and Phanteks SK123-140 D-RGB have in common
The common ground is wider than the gap: bearing type and pwm control are identical here.
Specs and benchmarks
Fan Size
- be quiet! Silent Wings 4 120mm PWM High-Speed
- 120 mm
- Phanteks SK123-140 D-RGB
- 140 mm
Brand
- be quiet! Silent Wings 4 120mm PWM High-Speed
- be quiet!
- Phanteks SK123-140 D-RGB
- Phanteks
Model
- be quiet! Silent Wings 4 120mm PWM High-Speed
- Silent Wings 4 120mm PWM High-Speed
- Phanteks SK123-140 D-RGB
- SK123-140 D-RGB
Bearing Type
- be quiet! Silent Wings 4 120mm PWM High-Speed
- Fluid Dynamic
- Phanteks SK123-140 D-RGB
- Fluid Dynamic
Static Pressure
- be quiet! Silent Wings 4 120mm PWM High-Speed
- 3.96 mmH2OBest
- Phanteks SK123-140 D-RGB
- 1.9 mmH2O-52%
Max Speed
- be quiet! Silent Wings 4 120mm PWM High-Speed
- 2500 RPMBest
- Phanteks SK123-140 D-RGB
- 1500 RPM-40%
Airflow
- be quiet! Silent Wings 4 120mm PWM High-Speed
- 76.7 CFMBest
- Phanteks SK123-140 D-RGB
- 74.0 CFM-4%
Noise Level
- be quiet! Silent Wings 4 120mm PWM High-Speed
- 31.2 dBA
- Phanteks SK123-140 D-RGB
- 29.7 dBABest
PWM Control
- be quiet! Silent Wings 4 120mm PWM High-Speed
- Yes
- Phanteks SK123-140 D-RGB
- Yes
Which one should you pick?
Choose be quiet! Silent Wings 4 120mm PWM High-Speed if you want the higher static pressure (3.96 mmH2O vs 1.9 mmH2O), the higher max speed (2500 RPM vs 1500 RPM) and the higher airflow (76.7 CFM vs 74.0 CFM).
Choose Phanteks SK123-140 D-RGB if you want the lower noise level (29.7 dBA vs 31.2 dBA).
Price comparison
| Retailer | be quiet! Silent Wings 4 120mm PWM High-Speed | Phanteks SK123-140 D-RGB |
|---|---|---|
| Amazon | View on Amazon | |
| Newegg | View on Newegg | |
| Phanteks | View on Phanteks |
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 4 120mm PWM High-Speed
8 / 10 Expert Rating
More airflow than the quiet-first competition, with a bearing rating built for a decade of running.
Phanteks SK123-140 D-RGB
7 / 10 Expert Rating
A well-rounded 140mm intake fan for Phanteks cases that want lighting without sacrificing airflow.




