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Compare case fans by size, bearing type, airflow and static pressure.
Updated October 10, 2026
91 case fans from 21 brands.
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Showing 91 Case Fans found
Compare case fans by size, bearing type, airflow and static pressure.
Fans listed by size, thickness, maximum speed, airflow, static pressure and noise, with the RPM each figure was measured at.
A noise figure without its speed is meaningless, so both are recorded here. It is why the best-performing fan sometimes looks like the loudest.
Why a fan's noise rating does not match what you hear explains the gap between the dB(A) on the box and the fan sitting in your case. Popular comparisons: Arctic P12 PWM PST vs DeepCool FK120 and be quiet! Pure Wings 3 120mm vs Silent Wings 4 120mm High-Speed. Airflow is a system property, so check your PC case and CPU cooler before adding fans.
Decide the job first. Static pressure fans are designed to push air through resistance, meaning radiators, dense heatsinks and restrictive filters. Airflow fans move more air in open space, meaning case intakes and exhausts. Using one in the other's place costs real degrees.
A dB(A) figure is only comparable at a stated speed, which is why the quietest fan in a list is often just the slowest one. Compare noise at a matched airflow figure, and treat manufacturer numbers as measured in an anechoic chamber, not in your case.
140mm fans move the same air as 120mm fans at lower speed, so they are usually quieter, if the case takes them. Thickness matters on radiators: a 25mm fan is standard, and 30mm or thicker improves static pressure at the cost of clearance.
Sleeve bearings are cheapest and fail earliest, especially mounted horizontally. Rifle, FDB and magnetic levitation bearings last longer and stay quieter as they age. The rated hours figure assumes a fixed temperature, so treat it as a ranking, not a promise.
PWM fans hold a stable low speed and take a proper curve from the motherboard. Three pin fans are controlled by voltage and usually will not run below 40 percent. For a quiet machine, PWM is the difference.
Slightly more intake than exhaust keeps dust coming through filters rather than through every seam in the case. Equal or negative pressure means dust everywhere.
Airflow moves air through open space and suits case intakes and exhausts. Static pressure pushes air through resistance and suits radiators and heatsinks.
At the same speed, usually yes, because of better bearings and blade design. Compare noise at a matched RPM rather than comparing headline figures.
Pulse width modulation lets the motherboard vary fan speed with temperature. Without it a fan runs at a fixed speed or is controlled crudely by voltage.
Two intakes and one exhaust covers most builds. Beyond that, matching intake to exhaust volume matters more than adding fans.