Normal
Table 1. 40x40x20mm fan specifications and respective data sheets. Values not necessarily directly comparable as data sheet origins differ.Model No.Rated Voltage (v)Rated Current (A)Rated Power (W)Rated Speed (rpm)Max Airflow (CMM)Max Air Pressure (mmAq)Noise Level (dB/A)Data sheet LinkNoctua A4x20 FLX120.050.650000.1572.2614.9noctua.atAD0412LB-C50120.070.8462000.1974.7125.0eldis.deAD0412MB-C50120.080.9669000.2196.1528.5eldis.deAD0412HB-C50120.101.2078000.2537.4931.9eldis.deAD0412UB-C50120.141.6885000.2708.2736.1eldis.deAD0412XB-C51120.202.408500+0.3117.0137.5 (41.5 max)adda.com.twFrom this data we can see that the AD0412HB-C50 will yield a 61.15% increase in maximum airflow and a 231.42% increase in maximum air pressure over the Noctua A4x20.The AD0412XB-C51 sees a further increase of 22.93% maximum airflow over the AD0412HB-C50 but has a 6.85% decrease in maximum air pressure. However, since the data points are derived from different origins, we can not be sure these metrics are directly comparable. i.e. pinch of salt required.In conclusion, I would say that the ADDA fan you have will be a massive improvement in terms of cooling performance while still staying very quiet even at maximum fan speed. It may not perform quite as well as the AD0412XB-C51 but it will almost certainly be quieter. Just keep an eye on temps, especially if you intend on doing some crazy overclocking although this would not be recommended given your current cooler limitations.
Table 1. 40x40x20mm fan specifications and respective data sheets. Values not necessarily directly comparable as data sheet origins differ.
12
0.05
0.6
5000
0.157
2.26
14.9
0.07
0.84
6200
0.197
4.71
25.0
0.08
0.96
6900
0.219
6.15
28.5
0.10
1.20
7800
0.253
7.49
31.9
0.14
1.68
8500
0.270
8.27
36.1
0.20
2.40
8500+
0.311
7.01
37.5 (41.5 max)
From this data we can see that the AD0412HB-C50 will yield a 61.15% increase in maximum airflow and a 231.42% increase in maximum air pressure over the Noctua A4x20.
The AD0412XB-C51 sees a further increase of 22.93% maximum airflow over the AD0412HB-C50 but has a 6.85% decrease in maximum air pressure. However, since the data points are derived from different origins, we can not be sure these metrics are directly comparable. i.e. pinch of salt required.
In conclusion, I would say that the ADDA fan you have will be a massive improvement in terms of cooling performance while still staying very quiet even at maximum fan speed. It may not perform quite as well as the AD0412XB-C51 but it will almost certainly be quieter. Just keep an eye on temps, especially if you intend on doing some crazy overclocking although this would not be recommended given your current cooler limitations.
