Here's the second part of The Inq's writeup about ATI's R600 GPU:
The R600 board is HUGE but funnily enough, biot in length. Even though the very first revision of the board was as long as the 7900GX2, back in late August/early September engineers pulled a miracle and significantly reduced the size of the board. Right now, they are working on even further optimisations of components, but, from what we saw, this is the most packed product in history of 3D graphics.
The PCB will be shorter than 8800GTX's in every variant, and you can compare it to X1950XT and 7900GTX. The huge thing is the cooler. It is a monstrous, longer-than-the-PCB quad-heat pipe, Artic-Cooling style-fan on steroids looking beast, built from a lot of copper. Did we say that it also weighs half a ton?
This is the heaviest board that will hit the market and you will want to install the board while holding it with both hands. The cooler actually enhances the structural integrity of the PCB, so you should be aware that R600 will bring some interesting things to the table.