Do you guys really expect the custom cards to be that much better in terms of noise/heat?
If the Arctic Accelero Xtreme III on overclockers.net is anything to go by... then it will a Monumental difference. That test show Temperature improvements of as much as 30 Degrees celcius in Furmark. I would say thats a massive improvement. :biggrin:
As for the noise that solution was noticeable quieter. Whether the AIB solutions can come close to that Aftermarket cooler is anyones guess but even close would make both the 290/290x MUCH more appealing.
A little snipet from a user on Overclockers forums. All credit goes to "Terminal Boy" for showing details on installation but here are lines 4-6 from his post.
"After 30 minutes of Heaven 4.0 with AX III:
4. GPU temp full load is down to 57 deg C from 95 deg C.
5. VRM1 temp seems to have increased by 2-3 deg C, so perhaps this is the one component that the stock cooler actually works well on.
6. VRM2 temp is down to 5o deg C from 84 deg C."
Seems to be darn incredible how much of a difference and how crappy the reference cooler really is.