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.
As for noise levels, the two 90mm fans spun up to 1800rpm, or 49%, during our testing, producing a reading of 38dBa on our sound meter. It's not as whisper-quiet as the Gaming X Trio, but it is still far from loud and is unlikely to be audible over your case fans.