So how fast this thing's gonna be? Hilbert says in his 4870x2 article that he's quite certain this card will beat GTX 280 too like it's bigger brother but by how much? Can anyone guess raw performance judging from the specs provided? http://www.guru3d.com/article/radeon-hd-4870-x2-review-crossfire/1 Sorry I'm bit excited because it seems it's much cheaper(about 399dollars he says) so maybe if I sell my current card at good price I can afford one. When will the card be available do you think?