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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.
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. Ambient noise in the room measures close to the limits of our sound meter at 28dBa. It isn’t a real world situation to be measuring with a case panel off only a few centimeters away from a video card. Our noise figures may therefore be lower than other publications who record at closer distances, or without a fully closed case muting the noise.
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 Refrigerator
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 Palit GTX780 JetStream 6GB cards are not the quietest we have tested hitting almost 37dBa on our meter from a closed chassis around a meter away. When two are in SLi obviously the noise levels are higher (we measured around 45dBa), however it would depend on your chassis, and slot positioning. Always best trying to give the cards a little air flow room between them.
Nice looking cards. only thing that puts me off is the fact I owned Palit before and two of their cards died (earlier generation card).
They are well priced for the performance you get, but I agree, the clock speeds are terrible out of the box.
No availiability of these cards anywhere – but I bought Gainward cards from OCUK , same performance and hopefully overclock as well too 🙂
I would rather have had 6GB GTX780 Ti’s , I can’t see any high end user wanting a card that was released a year ago and now they have added more memory to it.
Nvidia are very clever, they DO know a 6GB GTX780TI will just kill the more expensive card sales (Titan Black) completely.
Thanks for the review.
I’m selling my 690 and I’m thinking of upgrading to 2 of these…
You guys put a lot of effort in the review and it much appreciated.