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How noisy are 5870s?

Just had a play with CCC/Furmark stability test and manual fan settings - Summary 30% or above fan speed ,which appears to set in at a temp of 70c, is noisy.
Very much like the 4870 I had except I used to hear the 4870 fan speeding up when gaming whereas with the 5870 I have not.

May be that the cure for the noise is to use an Arctic cooler Twin Turbo (Pro) - I did this with the 4870 and it worked a treat.

But not thinking of doing this yet - in actual gaming (max of say 2/3hrs stint) I've not noticed the fan spinning up so no reason to:D (Then again my hearing may have got worse :( )
 
See a lot of people saying it's fine "under normal operating conditions" or similar, and that it's only loud when booting and the fan is at 100% for a short period.

Question is, what exactly are normal conditions. Do you mean it's fine until you start playing a game which works it hard, then it gets loud, or the fan never gets near 100% even under intensive gaming?

(Thanks for replies so far :) )

I was playing crysis for hours and hours and the fan hardly went above 30-35% and wasn't even running very hot, even at that fan speed. I'm a proper noise nazi and you can barely hear it. It'd be fair to say that its a little louder than the ultra-silent 8800gts's of old, but not by THAT much and what you can hear is a fairly pleasant wind type sound rather than a horrible whine or anything like some.

It'll undoubtedly be MILES quieter than your 4870x2, thats for sure.
 
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