Pulling out the TES 1350A Sound Level Meter, we find ourselves quickly yelling into the top of it to see how loud we can be.
After five minutes of that, we get a bit more serious and place the device two CM away from the fan on the card to find the maximum noise level of the card when idle (2D mode) and in load (3D mode).
Noise levels on the Sapphire R9 290X TRI-X 4GB OC are quite good. You can see that we manage to come in slightly quieter then the reference card when it's running in "Quiet Mode," and, if we compare the temperature numbers, we're 14c cooler at load. It's a real testament to the quality of the TRI-X cooler that Sapphire offers.