Hello Atreju1993
Very quiet for a desktop PC. Of course, no comparison to a LapTop, for example. You hear practically nothing there. Here the fans are much bigger. You can hear a low hiss from the fans. I first had the PC on the left side of the table. It bothered me a little because it was right next to it. Now it's under the table and it doesn't bother me. It also stays very quiet when I'm playing. I'm currently playing Witcher 3 on the highest setting and it's only got a little louder. Not annoying for me.