Could've gotten an Antec 300 for $45 w/ rebate, which looks similar but much better quality case. The Powercolor passive graphics cards look quite promising if you're dead set on low-noise PC. I think if you get two of these stacked in that case you're going to need a side fan to blow cool air over them, which will definitely raise the noise level when you sit next to it unless you go with an incredibly low RPM fan. At this time Bitcoin mining is quite difficult to do effectively and at a low noise level (my whole living room hums with fans to keep the temps down for 24/7 mining). Good luck and please do post pics in the mining rig thread, as you will have quite the unique set-up.
Thanks I will do that, I am not sure if I get exacty these cards since they are 1/3 more expensive than 5770 and 6770 version which also are available with passive cooling and seem to offer the same or even better stats.
But this version seems to be the only one which has the fins aligned in such a way that the airstream can enter the cooler straight on.
There are some very encouraging stats though...
the 6850 seem to surpass what's possible with the previous ones on the wiki... 300 MH/s, but their average is lower..
From what I've learned so far the stream processors seem to be grouped in more smaller chunks in this card, so I guess it depends on the mining software. Are there tweaks yet for the new generation?
Because on paper their Processors*Clock/Watt it should offer 7% less performance but that is not accounting for architectural benefits.
I already found a seller for a used passive 5770 btw
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