Originally posted by dstroy:

Oh well, with vsync it's the same! I also do not understand why vsync should generate less graphics load. It's more the other way around normally!

Because it limits your max fps in the menu which by default is uncapped. You need to limit your fps outside the game if the fan noise an issue for you. It is not dangerous to your hardware at all.

The game is really demanding on the GPU even with the low textures.