Here are some pictures from the R360 from ATI (the RADEON 9800 PRO XT). This card has a new cooling system with a big fan, most likely it will be rather quiet I think.
You read it first at our web-site a month ago that ATI would utilize a totally redesigned cooling solution on its new high-end R360 powered graphics cards coming out this Fall, now you have a chance to see the picture worth a thousand words.
Looks like the heat-sink is made of copper, while the fan is mounted in order to exhaust warm air from the hot VPU inside the computer case. Since the fan itself if large, I do not expect it to be too loud, and, yes, the whole cooler is a single-slot solution.
There will be a version of the R360 with 128MB RAM and one with 256MB of memory. Pricing will be problably $399 for the 128MB card, and $499 for the RADEON 9800 PRO XT with 256MB RAM.
Source : X-bit Labs