The fan stop is not one. Because Palit has solved this with the fans a bit tricky and simply relies on the physics and data of the fans (minimum and start-up speed). In the Idle it is approx. 19%, i.e. slightly below 500 rpm, which should be according to the curve, only from approx. 47 °C increases the speed, which can be seen very nicely from the diagrams. This is quite smart, because you don’t have to worry about switch-on pulses and hysteresis. You don’t hear the idle speeds anyway.
This is no different with the stress test.
Let’s look at the measured values again in direct comparison to the Founders Edition as a tabular listing:
| Palit RTX 2070 GRPE | Nvidia RTX 2070 FE | |
|---|---|---|
| Fan speeds Open Benchtable Maximum | 1370 rpm (Gaming, Peak) | 1635 rpm (Gaming, Peak) |
| Fan speeds Open Benchtable Average | 1362 rpm (warmed up) | 1605 rpm (warmed up) |
| Fan Speeds Closed Case Maximum | 1492 rpm (Gaming, Peak) | 1759 rpm (Gaming, Peak) |
| Fan Speeds Closed Case Average | 1471 rpm (warmed up) | 1721 (warmed up) |
| Noise Emission (Air) Average | 35.7 dB(A), Closed Case (Peak) | 39.1 dB(A), Closed Case |
| Noise Emission (Air) Idle | 30.3 dB(A) | 31.3 dB(A) |
| Sound characteristic / hearing impression | quiet, low-frequency peak | rather noisy, hardly lower-frequency shares |
| Coil-feathers/electric noises | very low | low, only for very high FPS numbers and for load changes |
Sound Spectrum
The measured 35.7 dB(A) are based on the measured 1345 rpm in the closed housing. I applied the same gaming load to the open set-up in the measuring room, but the fans were set to approx. 1470 rpm to be able to adjust this value exactly. The result is audibly below the level of the Founders Edition, whereby the cooling is significantly better despite higher power consumption. The card is really quiet, whisperquiet.
The sound backdrop is present and you can also perceive and measure (low-frequency) engine noise for light noise (see peak on the spectral analysis above). The noise comes from the turbulences of the rotor blades and is defined by a rather oscillating noise of the two fans. You could throttle the fans even further by setting the target temperature to 75°C.
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