I'm happy with the 3x SW3 HF I bought at least, They are basically completely silent at half speed(50% ~1100rpm) and can have a little noise above but it isn't much compared to the old fans I had that are much louder at slower speeds.
Though I noticed they only spin ~2000rpm on the motherboards I've had (a gigabyte and a Biostar)
Gigabyte X570 AORUS XTREME, Ryzen 7 3800X 4.45Ghz, 4266/1900 MEM/FCLK, 188.8.131.52.76.tRFC 650 1T 1.58V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron E-die 16nm)
OLD: Biostar x470GT8 Ryzen 7 1700 @ ~4.0Ghz CPU, 3200Mhz RAM ...