It looks like that AMD needed to completely redesign the cooler and the upcoming Antilles dual-GPU card will use a design that hasn't been seen on graphics cards, at least not yet. Apparently the card will use a cooler with a cylindrical blower that will draw air from the rear of the card and distribute it over a vapor-chamber heatsink, or to be precise heatsinks since we are talking about a dual-GPU card.
As it was expected, the card will need two 8-pin PCI-Express power connectors and should be released sometimes during this quarter. You can find the original post here.
