We take our noise measurements with the sound meter positioned 1 foot from the graphics card. I measured the sound floor to be 34 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 Fire Strike Ultra stress test 20 times. An idle reading comes after leaving the system on the Windows desktop for 30 minutes.
I mentioned on the previous page that it was good to see the Gigabyte 1660 Ti running just 1C hotter than the MSI Gaming X, despite the basic cooler. That holds true, but clearly Gigabyte has had to run its two fans a bit faster to achieve those temperatures, as noise levels peaked in the 43dB region.
To be clear, this isn't really that loud – it is audible certainly, and definitely a fair bit louder than the near silent-running Gaming X – but compared to a lot of other cards, it is relatively quiet.