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 the 3DMark Time Spy stress test for 30 minutes.
To achieve its sub-70C operating temperature, the RX 6800 runs its fans at 50%, or 1680rpm, and that results in noise levels hitting 39dBa. This is a huge reduction in a noise compared to AMD’s previous reference designs, and it’s right on par with Nvidia’s RTX 3080 Founders Edition. The 6800 XT is 3dBa quieter, but it also runs a fair bit hotter due to its lower, 1350rpm fan speed.