Quote Originally Posted by STEvil View Post
Correct statement bolded.

The standard ATI heatsinks are not vapor chamber design. Anyone with access to a PC can google to see the stock ATi heatsink designs for each card.

Here's the 4870 and 4890's (thanks to eastcoasthandle for pics) for example
[ur]http://i11.photobucket.com/albums/a154/eastcoasthandle/4890/4870HS.jpg[/url
[ur]http://i11.photobucket.com/albums/a154/eastcoasthandle/4890/4890HS.jpg[/url
5970 uses vapour chamber, just to say. ATI/AMD uses vapour chamber on only their very hot cards. Hell, 4870X2 wasn't vapour chamber. 5970 required it.

Not sure about the 2900XT though. They are not marketing gimmicks. If they are, AMD wouldn't have used it themselves on stock design. Nor nvidia.