We take our noise measurements with the sound meter positioned 1 foot from the graphics card. I measured the noise floor to be 32 dBA, thus anything above this level can be attributed to the graphics cards. The power supply is passive for the entire power output range we tested all graphics cards in, while all CPU and system fans were disabled. A reading under load comes from running Cyberpunk 2077 for 30 minutes.
Fan noise isn't a real problem for the 4080 Super, either. I did measure it a touch louder than the 4080 non-Super, but it was hard to hear over my case fans. I also didn't notice any coil whine during my testing.