In past years, gamers would accept everything for a little bit more performance. Nowadays, users are more aware of their graphics card's fan noise and power consumption.
In order to properly test how much noise a card's fan emits, we use a Bruel & Kjaer 2236 sound-level meter (~$4,000). It has the measurement range and accuracy we are looking for.
The tested graphics card is installed in a system that does not emit any noise on its own, using a passive PSU, passive CPU cooler, passive cooling on the motherboard, and a solid state drive. Noise results of other cards on this page are measurements of the respective reference design.
This setup allows us to eliminate secondary noise sources and test only the video card. To be more compliant with standards like DIN 45635 (we are not claiming to be fully DIN 45635 certified), the measurement is conducted at a distance of 100 cm and 160 cm off the floor. Ambient background noise inside the room was well below 20 dBA for all measurements. Please note that the dBA scale is not linear but logarithmic. 40 dBA is not twice as loud as 20 dBA since a 6 dBA increase results in double the sound pressure. The human hearing perception is a bit different, and it is generally accepted that a 10 dBA increase doubles the perceived sound level. 3D load noise levels are tested with a stressful game, not with Furmark.
Idle fan noise is fantastic as the card completely turns its fans off in idle (up to 60°C).
Gaming noise has been improved considerably over the reference design, which also ran very high temperatures, unlike the ASUS STRIX. Compared to the competition, gaming noise is still too high since even the GTX 1060/1070/1080 reference designs are quieter, and we recently tested the MSI GTX 1060 Gaming X that ran at a quiet 28 dBA.
The underlying reason for such high fan noise seems to be that ASUS has set a 65°C temperature target for their card, which is too low. A target of 70°C or slightly above would have provided a better balance between temperature and noise.
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