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We have changed our method of measuring noise levels. We have built a system inside a Lian Li chassis with no case fans and have used a fanless cooler on our CPU. The motherboard is also passively cooled. This gives us a build with almost completely passive cooling and it means we can measure noise of just the graphics card inside the system when we run looped 3dMark tests.
Ambient noise in the room is around 20-25dBa. We measure from a distance of around 1 meter from the closed chassis and 4 foot from the ground to mirror a real world situation.
Why do this? Well this means we can eliminate secondary noise pollution in the test room and concentrate on only the video card. It also brings us slightly closer to industry standards, such as DIN 45635.
KitGuru noise guide
10dBA – Normal Breathing/Rustling Leaves
20-25dBA – Whisper
30dBA – High Quality Computer fan
40dBA – A Bubbling Brook, or a Refridgerator
50dBA – Normal Conversation
60dBA – Laughter
70dBA – Vacuum Cleaner or Hairdryer
80dBA – City Traffic or a Garbage Disposal
90dBA – Motorcycle or Lawnmower
100dBA – MP3 player at maximum output
110dBA – Orchestra
120dBA – Front row rock concert/Jet Engine
130dBA – Threshold of Pain
140dBA – Military Jet takeoff/Gunshot (close range)
160dBA – Instant Perforation of eardrum
The twin fan cooler is very quiet, even under load. When gaming it is barely audible, measuring 33.6 dBa. When idle, the fans only spin at 1,000 rpm meaning it could be classed as ‘almost silent' under real world situations.
well thats quite impressive, im still waiting for the true 460/560 replacement, im not spending this amount on a video card. what am I waiting for the 650?
ASUS make some great cards. the price is good, but I agree, I wish nvidia would get out a 180 quid card like the older 460, just updated.
Another great card, hard to go wrong now with anything in these ranges. Surprised how well it did in 3dmark 11, thats a hell of a score for a sub £300 GPU.
Loving the ASUS GTX660 akshun, come on KG time to give it away COMPETITION!