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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.
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 move to a three fan, dual heatsink cooler has paid dividends for AMD. This is an exceptionally quiet cooler, silent when idle and barely audible when gaming. To be fair, I think the Titan cooler is exceptionally good too, but it is a little louder under load.
well thats a lot of cash for that system lol. Interesting to see the staggering power demands.
my friend still cant buy one HD7990 never mind two, no stock anywhere. any ideas when they might be available?
More positive than the article in January, I read that and thought AMD weren’t supporting quad cf at all. I guess at that stage the HD7990 wasn’t official.
Good information on the power demands, I think a lot of people think every gaming system needs a 1000W PSU.
LOL, I was jockingly expecting the ‘MUST HAVE’ tag and you didn’t disappoint me at all.
@just a passerby. you should look at the more ‘budget’ oriented articles. people who want the fastest system and the most powerful computer would consider this a must have. I want a HD7990 and am saving up for it. due to the power with 3 monitors. Nothing is faster.
These reviews are hardly designed for people who struggle to afford a GTX650.
good review.
@Alex
I think ‘Worth Buying’ tag is more appropriate, not ‘Must Have’ but I was jokingly expecting it.
So internet denizen nowadays can decide what others should read, eh?
As cocky as a person can be, you fit the word perfectly. Maybe you’re born to have that personality.
I don’t need a graphic card as I don’t do gaming but I do fond reading hardware reviews. Also there is no such a thing ‘nothing is faster’, such thinking is a retardation to technology advancement. Well, of course if you had written it as ‘for now, nothing is faster in the market’, I would agree, but never forget engineering sample of next gen do exist (to be fair quadxfire/ quadsli it) and of course even you will struggle to afford it right now :).
You can feel free to give me those HD 7990s, I will gladly take them off your hands,besides I need to upgrade from my 2 Sapphire ATI Radeon 2gb HD4850x2s I have in quad-CrossfireX.
I am a nvdia fan boy and always been using nvidia video card but it seems to me nvidia release so many card and deliver no real difference between them gtx 780 then gtx 790 keep releasing stupid model and all nvidia fan boy keep buying ghem but o well might as well get the this hd 7990 because i know it beats all other-cards….Wow what a good article I just bought a sapphire 7990 will get another one when the price drop so I can cf these bad boys thankyou so much for the great article cf wins sli lose