Fan control and curves
We’ve known it for a long time: Cooling only works with a decent airflow and that’s exactly why I took a look at the fan curves now. For this purpose, I contrasted the (lower and usual) edge temperature and the fan speeds. In most normal games, you will get that high in Ultra-HD, so it will almost always end up at the approx. 1800 rpm, which you can already perceive then, though. The fan stop ends quickly, but you also get in at around 1300 rpm, which makes the start-up pulse obsolete. You can definitely leave it like that.
Noise emission “Volume
If you now measure the whole thing in gaming at the mentioned 350 watts, the 38.4 dBA of the KFA2 GeForce RTX 3080 Ti SG 12GB are much more bearable than the 44.1 dB(A) of the Palit RTX 3080 Ti GameRock 12GB. Really quiet is a bit different, but the rather even noise is more pleasant than a humming hurricane. You can see in the range around 300 Hz and below, as well as above, the resulting broadband patterns of air separation and turbulence.
As an interim conclusion, we can say that KFA2 has created a very good cooler that is in the midfield and does not look overwhelmed. We are also welcome to listen to the whole thing again from the Chamber (including a slight coil beep):
- 1 - Introduction, Unboxing and Specs
- 2 - Test System and Methods
- 3 - Teardown: PCB Analysis, Components and Cooler
- 4 - Gaming Performance
- 5 - Gaming Efficiency and Power Draw
- 6 - Power Consumption in Detail and Standards
- 7 - Transients and PSU Recommendation
- 8 - Temperatures and Clock Rates
- 9 - Fan Curve, Fan Speed and "Noise" Analysis
- 10 - Summary and Conclusion
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