Test and methodology
A Ryzen 5 3600 has to be cooled at factory settings, in addition 16GB Crucial Ballistix Sport (2x8GB) DDR4 memory on a MSI B550 Tomahawk (BIOS 7C91vA3). The Asus ROG Strix GTX 1060 6GB is running in zero-fan mode for the CPU stress tests only for the image output, and a BitFenix Whisper M 450W serves as the power source, all housed in the Thermaltake Core P3 as an open benchtable.
All records are logged with HWInfo64 v6.30-4240 – 2000ms logging, the specified temperature is derived from the sensor CPU Die (Average). The load of Prime95 produces an average of 88 watts of CPU package power. Since I don’t have air conditioning, the values in the graphs are the delta between room temperature and CPU temperature. This allows all cooling systems to be compared fairly, even if the ambient temperature is different. The thermal paste supplied with the cooler or pre-applied is used in each case.
The sound level is determined with a Voltcraft SL-200 meter at a distance of 40cm, operating in 125ms cycles in Lo mode. The room was measured at 33.2 dBA, an external sample table helps with the breakdown.
Benchmarks
In the first set of data, the speed of the radiator fans is gradually increased, the pump runs fixed at maximum speed:
|
12V pump |
30% PWM |
60% PWM |
100% PWM |
|
Fan speed |
706 RPM |
1340 RPM |
2077 RPM |
|
Pump speed |
~ 2800 RPM |
~ 2800 RPM |
~ 2800 RPM |
|
Sound level / characteristic |
34.8 dBA |
38.0 dBA |
48.6 dBA |
|
Ambient temperature |
24,1 – 24,1°C |
24,2 – 24,7°C |
24,4 – 24,7°C |
In the second run, the fans are fixed at 100% PWM and the pump is tested in increasing speed.
|
100% Fan |
6V |
9V |
12V |
|
Pump speed |
1741 RPM |
2331 RPM |
2810 RPM |
|
Fan speed |
~ 2075 RPM |
~ 2075 RPM |
~ 2075 RPM |
|
Ambient temperature |
24,2 – 24,2°C |
24,4 – 24,6°C |
24,4 – 24,7°C |
According to the specifications, the pump should only be able to be driven between 9 to 12 volts, but even with less voltage there were no problems. But since it is hardly noticeable even at maximum speed with a quiet 35.9 dBA, the pump can actually run permanently at maximum speed. And here is the overview of all results and comparison to other, similar AiO coolers:
Summary and conclusion
Overall, the new Silent Loop 2 leaves a good impression and ranks in the expected range in terms of pure cooling performance. The proven Silent Wings 3 fans look very good on the radiator and with variants in 120, 240, 280 and 360mm there should be something suitable for most requirements and cases. But even though the Silent Loop 2 definitely doesn’t get loud, it isn’t remarkably quiet at higher speeds either.
The 3-year warranty directly from be quiet! are not bad, but are now standard with most manufacturers. Especially in view of the relatively high price or surcharge to the Pure Loop would have been here certainly feasible 5 years. Before you make a purchase, it might be worthwhile to wait a little longer for prices to drop and for long-term experience with the pump.
The test samples are purchased by ourselves or provided by the manufacturers without obligation. There was and is no influence on the tests and results. An expense allowance is only paid in exceptional cases, but is shown and also has no influence on the test results.
be quiet! Silent Loop 2 120mm (BW009)
 | Zentrallager: 5 Stück lagernd, Lieferung 1-3 WerktageFiliale Wilhelmshaven: 5 Stück lagerndStand: 27.04.24 02:46 | 89,05 €*Stand: 27.04.24 02:47 |
| nullprozentshop.de | siehe Shop | 89,06 €*Stand: 27.04.24 02:12 |
 | Onlineshop: sofort ab Lager, Lieferung 2-3 WerktageFiliale Hannover/Laatzen: lagernd (keine Online-Reservierung möglich)Filiale Berlin, Filiale Dortmund, Filiale Düsseldorf, Filiale Hamburg, Filiale München, Filiale Stuttgart: nicht lagerndStand: 27.04.24 01:16 | 89,06 €*Stand: 27.04.24 01:17 |
be quiet! Silent Loop 2 240mm (BW010)
| Zentrallager: 3 Stück lagernd, Lieferung 1-3 WerktageFiliale Wilhelmshaven: 3 Stück lagerndStand: 27.04.24 02:46 | 119,58 €*Stand: 27.04.24 02:47 |
 | Sofort lieferbar, Lieferzeit max. 1-3 Werktage | 119,90 €*Stand: 27.04.24 02:43 |
 | Sofort verfügbar, Lieferzeit max. 1-3 Werktage | 119,90 €*Stand: 27.04.24 02:41 |
be quiet! Silent Loop 2 360mm (BW012)
| Zentrallager: 5 Stück lagernd, Lieferung 1-3 WerktageFiliale Wilhelmshaven: 5 Stück lagerndStand: 27.04.24 02:46 | 141,82 €*Stand: 27.04.24 02:47 |
 | Ware lagernd - versandfertig - Lieferzeit 1-3 Werktage | 141,83 €*Stand: 26.04.24 23:50 |
| Sofort lieferbar, Lieferzeit max. 1-3 Werktage | 147,90 €*Stand: 27.04.24 02:43 |
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