Comparison Noctua NF-P12-1300 vs Noctua NF-P12 PWM

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	Noctua NF-P12-1300	Noctua NF-P12 PWM
	from £52.32 Expecting restock	£21.95 Compare prices 1
all specs only differences
TOP sellers	Find prices on Amazon.uk Find prices on eBay.uk	Idealo.co.uk £22.00 Buy in shop
Main specs
Features	for case	for case
Product type	fan	fan
Fan
Number of fans	1	1
Fan size	120 mm	120 mm
Fan thickness	25 mm	25 mm
Bearing	magnetic centring	magnetic centring
Max. RPM	1300 rpm	1300 rpm
Speed controller	auto (PWM)	auto (PWM)
Max. air flow	54.3 CFM	54 CFM
MTBF	150 K hours	150 K hours
Noise level	20 dB	20 dB
Power source	4-pin	4-pin
General
Mount type	silicone mounts	silicone mounts
Dimensions	120x120x25 mm	120x120x25 mm
Added to E-Catalog	october 2014	may 2012

Price comparison

Max. air flow

The maximum airflow that a cooling fan can create; measured in CFM — cubic feet per minute.

The higher the CFM number, the more efficient the fan. On the other hand, high performance requires either a large diameter (which affects the size and cost) or high speed (which increases the noise and vibration levels). Therefore, when choosing, it makes sense not to chase the maximum air flow, but to use special formulas that allow you to calculate the required number of CFM depending on the type and power of the cooled component and other parameters. Such formulas can be found in special sources. As for specific numbers, in the most modest systems, the performance does not exceed 30 CFM, and in the most powerful systems it can be up to 80 CFM and even more.

It is also worth considering that the actual value of the air flow at the highest speed is usually lower than the claimed maximum; see Static Pressure for details.