Fan control and curves
Cooling only works with a decent airflow and that’s exactly why I looked at the fan curves in detail again now. For this purpose, I measured both BIOS variants for the card. You can see at the beginning of both graphs the switch-on pulse for the semi-passive fans, then the increase to some kind of safety level and after that the control of temperature vs. fan speed. You don’t have to understand AMD’s “fuzzy logic”, but it at least ensures that the cards are still (too) well cooled even during load changes at the beginning.
Noise emission “Volume
The initial revving up to 1400 rpm is articulated in a sound wave of around 35 dBA, which is still significantly quieter than the MSI RX 6750 XT Gaming X Trio sweating under full load. Then it gets significantly quieter with a longer runtime under full load. The disadvantage, however, is that you can now also easily hear the buzzing of the coils. Well, you can’t have everything and the good Mr. Lorentz and his power named after him are unfortunately a bit in the way acoustically. But it’s nothing to kill yourself over.
Even the 34 dBA in the performance BIOS are completely acceptable for such a card, and the 31.6 dBA in silent mode are really silent. As an interim conclusion, we can say that Sapphire has created a cooler that cools very well as a total package and also remains acoustically up to date and even weighs significantly less than competitor designs. Fits.
- 1 - Introduction, Unboxing, Technical Details
- 2 - Teardown: PCB, Voltage Converters and Cooler
- 3 - Gaming Performance
- 4 - Gaming Power Consumption and Efficiency
- 5 - Power Consumption, Load Peaks and PSU Recommendation
- 6 - Temperatures and Clock Rates
- 7 - Fan Curves and Noise
- 8 - Summary and Conclusion
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