With software modification can down regulate the fan in idle inaudible to 6% speed and load limit (adjusting the fan curve). My card is only up to 80 ° warm in AC Unity & Co still and reaches 1500 MHz Boost / 4000 MHz VRAM.
The biggest advantage of the cooling design: The direct removal of heat from the tower case my overlying CPU 10 ° is now running an average cooler and therefore quieter.
The graphics card itself may be somewhat louder than cards with axial fans, but overall my system is now quieter than before, since CPU and chassis fan must work less.