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be quiet! Silent Wings Pro 4 120mm PWM vs SilverStone AP121: Comparison

be quiet! Silent Wings Pro 4 120mm PWM and SilverStone AP121 separate most on static pressure: be quiet! Silent Wings Pro 4 120mm PWM at 5.31 mmH2O, SilverStone AP121 at 1.71 mmH2O, 68% in favour of be quiet! Silent Wings Pro 4 120mm PWM. Airflow splits them by another 58%, again favouring be quiet! Silent Wings Pro 4 120mm PWM. They match on 4 other specifications, including fan size, bearing type and lighting.

be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM)
be quiet!be quiet! Silent Wings Pro 4 120mm PWM
SilverStone AP121 (120mm/49.4 CFM/1.86 mmH2O Static Pressure/1500 RPM Max/24.4 dBA/Fluid Dynamic Bearing/No RGB/PWM)
SilverStoneSilverStone AP121

Specs

Specification
be quiet! Silent Wings Pro 4 120mm PWM (120mm/66.4 CFM/2.66 mmH2O Static Pressure/2200 RPM Max/30.7 dBA/Fluid Dynamic Bearing/No RGB/PWM)
be quiet! Silent Wings Pro 4 120mm PWM
SilverStone AP121 (120mm/49.4 CFM/1.86 mmH2O Static Pressure/1500 RPM Max/24.4 dBA/Fluid Dynamic Bearing/No RGB/PWM)
SilverStone AP121
Fan Size120 mm120 mm
Brandbe quiet!SilverStone
ModelSilent Wings Pro 4 120mm PWMAP121
Bearing TypeFluid DynamicFluid Dynamic
LightingNo RGBNo RGB
Fan Thickness25 mm25 mm
Static Pressure5.31 mmH2O1.71 mmH2O-68%
Max Speed3000 RPM1500 RPM-50%
Noise Level36.9 dBA+14.5 dBA22.4 dBA
Airflow83.9 CFM35.36 CFM-58%
PWM ControlYesNo
Connector Type4-Pin PWM3-Pin DC
PositioningPremiumBalanced mainstream
Source URLhttps://www.bequiet.com/en/casefans/3705https://www.silverstonetek.com/en/product/info/coolers/AP121/

Price comparison

Retailerbe quiet! Silent Wings Pro 4 120mm PWMSilverStone AP121
AmazonView on AmazonView on Amazon
NeweggView on NeweggView on Newegg

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 120mm PWM

9 / 10 Expert Rating

be quiet!'s best radiator fan, closing most of the gap to Noctua's A12x25 at a friendlier price.

SilverStone AP121

6 / 10 Expert Rating

A competent, unremarkable fan best chosen for brand consistency in a SilverStone build rather than outright performance.

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