Gigabyte R9 280X OC 3 GB Review 28

Gigabyte R9 280X OC 3 GB Review

Performance Summary »

Fan Noise

In past years, gamers would accept everything for a little bit more performance. Nowadays, users are more aware of the fan noise and the power consumption of their graphics cards.

We use the Bruel & Kjaer 2236 sound-level meter (~$4,000) to properly test the fan noise a card emits. It has the measurement range and the accuracy we are looking for.

Fan Noise Measurement Setup

The tested graphics card was installed in a system that was completely cooled system passively. That is, passive PSU, passive CPU cooler, and passive cooling on the motherboard and 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 was conducted at a distance of 100 cm and 160 cm off the floor. Ambient background noise in 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, as a 3 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 were tested with a stressful game, not with Furmark.

Idle noise levels are great, making the card barely audible. During gaming, we measured 45 dBA after Gigabyte sent us an updated BIOS that's supposed to reduce fan noise. Given the fan runs super fast to keep the card at 70°C with the full load, this is no surprise. It would have in my opinion been much better for noise had Gigabyte allowed for up to 75°C or for much lower noise levels. Gigabyte replied to this suggestion by pointing out that their observations show Asian markets to focus more on lower temperatures, and users there don't care about noise as much.

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Nov 23rd, 2024 05:37 EST change timezone

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