Methodology
Cooling an AMD Ryzen 9 3950X at various levels of power consumption, joined by 16GB Crucial Ballistix Sport (2x8GB) DDR4 memory on an MSI B550 Tomahawk (BIOS 7C91vAB). The Asus ROG Strix GTX 1060 6GB runs in zero-fan mode for the CPU stress tests only, and a Fractal Design Ion Gold 750W serves as the power source. The whole thing is housed in the Thermaltake Core P3 as an open benchtable.
The test system runs Windows 10 Pro 22H2 (build 19045.2251). All data sets are captured with HWInfo64 v7.34-4930 – 5000ms logging, the specified temperature is derived from the sensor CPU Die (Average). Since I don’t have air conditioning, the values in the graphs are the delta between room temperature and CPU temperature. This allows a fair comparison of all cooling systems, even if the ambient temperature is different. The thermal paste included with the cooler or pre-applied is used in each case.
I determine the sound level with a Voltcraft SL-200 meter at a distance of 40cm, which operates in 125ms cycles in Lo mode. The room was measured at 33.2 dB(A), an external sample table helps with the breakdown.
Benchmarks
In the first test run, a loudness of 40 dB(A) was set at 40cm from the center of the front fan, in my setup that’s 90% PWM for the front fan and 85% PWM for the middle one:
And after that, this air cooler still gets to show what it can do in terms of cooling performance at maximum speed, regardless of volume. A maximum of 43.4 dB(A) was achieved at 100% PWM and 40cm distance.
A full comparison to other coolers can be found here:
Roundup and re-measurement of all tested CPU air and water coolers
Summary and conclusion
The latest fans, a high density of cooling fins, and then a whole lot of them, sounds like a recipe for success. And it is, because at the time of testing, the MA824 Stealth is able to secure first place among air coolers.
The workmanship is as good as usual and the paint job is also flawless. From a purely visual point of view, I would have liked the purple tint on the fans to be omitted. It’s also worth mentioning that the center fan is more or less permanently installed, so it can’t even be removed. I would also like to show an interesting video from Computex:
@coolermaster_dach Bemalt mit reaktiver Farbe, zur Demonstration. #CoolerMaster #MakeItYours #Computex #Heat #Thermal #Cooler #Technology #fyp #Innovation
But back to us and down to earth, Cooler Master is calling out an MSRP of 109.90€ for this cooler. Pretty steep for an air cooler, but more performance currently offers hardly anyone else. In addition, it comes with a 5-year warranty, whereby nothing can break on such a cooler except for the fans. The predecessor MA624 Stealth started with an MSRP of 104.90€ and is now under 80€, so maybe it’s worth waiting a bit.
The review sample was provided by Cooler Master 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.
Cooler Master MasterAir MA624 Stealth (MAM-D6PS-314PK-R1)
 | 1-2 Wochen | 109,63 €*Stand: 01.05.24 22:00 |
 | Verfügbar - 4-6 Werktage Lieferzeit | 109,98 €*Stand: 01.05.24 21:12 |
Cooler Master MasterAir MA824 Stealth (MAM-D8PN-318PK-R1)
 | Auf Lager | 89,90 €*Stand: 01.05.24 22:01 |
| Lager Lieferant: Sofort lieferbar, 1-3 Werktage | 90,79 €*Stand: 01.05.24 22:00 |
 | Alsdorf: bei Vorbestellung in ca. 24h - 48h lagerndVersandlager: lagerndStand: 01.05.24 21:45 | 95,90 €*Stand: 01.05.24 21:46 |
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