Methodology
An AMD Ryzen 9 3950X has to be cooled at various power consumption levels, along with 16GB of Crucial Ballistix Sport (2x8GB) DDR4 RAM on an MSI B550 Tomahawk (BIOS 7C91vAB). The Asus ROG Strix GTX 1060 6GB runs for the CPU stress tests only for the image output in zero-fan mode and a Fractal Design Ion Gold 750W serves as the power source. The whole thing is located in the Thermaltake Core P3 as an open benchtable.
The test system runs on Windows 10 Pro 22H2 (Build 19045.2251). All data sets are recorded with HWInfo64 v7.34-4930 – 5000ms logging, the specified temperature results from the CPU Die (Average) sensor. Since I don’t have air conditioning, the values in the graphs are the delta between room temperature and CPU temperature. This means that all cooling systems can be compared fairly, even if the ambient temperature is different. The heat-conducting paste supplied with the cooler or applied beforehand is used in each case.
I determine the sound level with a Voltcraft SL-200 measuring device at a distance of 40 cm, which works in 125 ms cycles in Lo mode. The room was measured at 33.2 dB(A), an external example table helps to break it down.
Benchmarks
In the first test run, a loudness of 40 dB(A) was set at a distance of 40cm from the center of the front, in my setup this is 75% PWM for the fan in the front and 70% PWM for the middle fan.
And then this cooler is allowed to show what it can achieve in terms of cooling performance at maximum speed, regardless of the volume. A maximum of 46.3 dB(A) was achieved at 100% PWM and a distance of 40 cm.
A full comparison with other coolers can be found here:
Overview and comparison of all tested CPU air and AiO water coolers
Summary and conclusion
My test of this cooler was almost delayed considerably, because unfortunately my sample was delivered with a defective front fan. But since I keep tested coolers for quite a while, I was able to make do with the Fuma 2 Rev. B fan.
- Fuma 2: 137x155x129mm
- Fuma 3: 138x154x128mm
As you can see from this comparison of the dimensions, a lot has remained the same between versions 2 and 3. This also applies to the fans used, which remain a Kaze Flex II 120 Slim and Kaze Flex II 120.
And that doesn’t seem to have been such a good idea, because the Fuma 3 is louder than the Fuma 2 at the same fan speed. Presumably the higher density of the fins results in more resistance and louder turbulence in the airflow.
In the test run at maximum speed, the Fuma 3 is just ahead of the Fuma 2, but is louder. On the other hand, in the 40 dB(A) test, it just doesn’t manage to maintain the 200 watts and the power target automatically drops to 199 watts. So somehow you have a new cooler, which has at most improved slightly in terms of appearance and otherwise performs slightly worse than its predecessor. But at least the price has fallen from 58€ for the Fuma 2 Rev. B to just 52€ for the Fuma 3.
The test sample was provided by Scythe without obligation. There was and is no influence on the tests and results. There was also no compensation for expenses and no obligation to publish.
Scythe Fuma 3 (SCFM-3000)
 | Auf Lager | 54,90 €*Stand: 21.09.24 05:24 |
 | Online-Shop (Versand), Augsburg, Böblingen , Esslingen, Frankfurt, Heidelberg, Heilbronn, Karlsruhe, Lagerverkauf Magstadt, Ludwigsburg, Mannheim, Nürnberg, Pforzheim, Reutlingen, Stuttgart, Ulm: auf LagerFellbach: auf Lager in 1-2 WerktagenStand: 21.09.24 03:34 | 54,99 €*Stand: 21.09.24 05:20 |
 | Versandlager: ca. 2-3 Werktagen versandbereit, Lieferzeit 3-4 WerktageLinz, Salzburg, Wels: 2-3 WerktageZentrale Timelkam: ca. 2 WerktageDornbirn, Graz Nord, Graz Süd, Innsbruck, Klagenfurt, St. Pölten, Villach, Wien 15, Wien 20, Wr. Neustadt: 1 WocheStand: 21.09.24 04:45 | 55,90 €*Stand: 21.09.24 05:17 |
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