GPUs Hardware Reviews

Hot iron in the test: AMD Radeon VII – with a lot of start and wind at eye level to the Geforce RTX 2080

There is no fan stop, but the fans in the idle with permanent 800 to 820 rpm rotating fans do not disturb either. What struck me later, however, was the possible serial dispersion of the individual fans, which run at identical PWM signal with slightly different speeds, as a separate laser measurement showed. At higher speeds, a slightly oscillating noise results, as these differences fall into the audible frequency range and one can also perceive "floating" sounds well.

But the actual construction site is somewhere else, because if we look at the fan curves, then we and our ears are truly bad. Between 54 and 55°C, the mail goes off during the warm-up! From zero to almost 3000 in under 3 seconds! That doesn't even make a rocket launch, but that's the map. I also don't want to hide the fact that the first time I got a fright and thought the card was broken.

In a lengthy conversation with AMD, we sold this behavior as an intended feature and also referred to Wattman, where you can customize the fans yourself with a now much easier to use control. Of course very much at the expense of performance, but the enthusiast would put performance before volume anyway. Well, if you look at it that way…. You can't just listen.

This is precisely why I have prepared not only the still image of the frequency spectrum and the values of the sound pressure, but a real video with an analysis of the determined spectrum. If you've always wanted to know which other device the card could easily compete with, here's the resolution:

Let's look at the measurements again in direct comparison to Nvidia's Founders Edition as a tabular listing:

AMD Radeon 7 Nvidia GeForce RTX 2080 FE
Fan speeds Open Benchtable Maximum 2927 rpm (Gaming, Peak) 1907 rpm (Gaming, Peak)
Fan speeds Open Benchtable Average 2911 rpm (warmed up) 1887 rpm (warmed up)
Fan Speeds Closed Case Maximum 2949 rpm (Gaming, Peak) 1959 rpm (Gaming, Peak)
Fan Speeds Closed Case Average 2927 rpm (warmed up) 1942 (warmed up)
Noise Emission (Air) Average 49.2 dB(A), Closed Case (Peak) 39.6 dB(A), Closed Case
Noise Emission (Air) Idle 32.1 31.3 dB(A)
Sound characteristic / hearing impression rushing, engine noise rather noisy, hardly lower-frequency shares
Coil-feathers/electric noises constantly audible low, only for very high FPS numbers and for load changes

Sound Spectrum

The measured 49.2 dB(A) is based on the measured 2947 rpm in the closed housing. We have applied the same gaming load to the open set-up in the measuring room, but the fans are limited to approx. fixed at 2950 rpm in order to be able to adjust this value exactly. The result is a whopping 10(!) dBA above that of nvidia's Founders Edition and is completely unacceptable.

The card is loud, way too loud. You can turn and turn it as you like, but if you operated Nvidia's FE at the same fan speeds (and thus significantly cooler), the achievable boost clock would be even higher. If you were really fair, you would have to benchmark both cards at the same fan speeds, because the current setting already falls into the category Cheating. This is matched by the statement that this card has been optimised purely for performance. A rogue who…

 

 

 

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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