As a whole, this entire announcement isn't that amazing, but it does mean that you'll be able to equip yourself with a triple-display setup even easier, and for less money. At first, the cables will be available in MiniDP to DVI and DP to DVI formats, and it's likely that some companies will choose to bundle them with special editions of their graphics cards. As these cables carry a suggested price of $30, you could likely expect these special bundles to include a similar premium. Some companies you can expect to sell these adapters include Sapphire, XFX, PowerColor, Accell, and Wieson.
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One important factoid to keep in mind is that the cable AMD has announced here will support resolutions of up to 1920x1200, so for those who might be considering 3x 2560x1600, a more robust cable will be required (DP to DVI-D), but at that point, the more expensive cable might not be a major issue given that three 30" displays aren't exactly cheap.
Source: Techgage