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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.
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
Nvidia win this round easily, as their GTX690 is the quietest of the cards on test, by a noticeable margin. The Sapphire HD7970 6GB generates a noticeable level of noise in single card formation with Lethal Boost enabled. With two of them in Crossfire, the noise rises significantly to around 40 dBa when gaming. The fastest solution is also the loudest.
The VTX3D HD7990 can be heard under gaming load but the noise level is acceptable for a gamer who wants ultimate performance.
dear lord, my epenis is so small right now 🙁
Seems like a great price point, even though it costs as much as my system im working on right now!
Bit of a bargain for the high end gamers with loads of disposable budget.
both this and the GTX690 are quite power efficient, considering!
Would have been nice to see two HD7870 Tahiti LE’s in CF, just to give a viewpoint of what could be achieved with around £400.
Good review otherwise, dream system material
Seems I got one of the five left 🙂 just in time ! thanks for review ! awesom!
what power supply will you be using Tom?
just ordered a 1000W Seasonic, as I needed to move up from my older 750W corsair.
Costly day, I hate this site sometimes 🙁
Sadly the framerates DON’T tell the whole story as Hardocp and Tech report have shown, crossfire might show higher framerates but real world game play is not as smooth as SLI.
Real world gameplay was perfectly smooth on the HD7990 with the latest AMD beta drivers – unless there is a Crossfire glitch with a specific game I didn’t test (which is possible as that can happen). I was playing games on it for a few days.
Wow, this thing is ridiculous, I need a new card lol
AweSoMe!!!