Quote Originally Posted by realsmasher View Post
rumors an german newspage said, that this card can, unlike 2 single 3870 which must have all data doubled, use full 1gb in CF mode because of some ringbus or whatever.

Not sure about single card, but who wants single card ?

anyway, 3870X2-CF will have use of only 512 or 1024mb, depending on the rumor(truth or not). 2gb ist not possible at all.
That rumor is pure crap concerning the R680, it's a rumor that's about the upcoming R700. The rumor was that R700 will use 4 of the same chips and every chip would be a single stop on the ringbus-memory controller, just like R520/R580/R600/RV670 have 4 main stops on the ringbus internally, but this time each separate chips will be one of those stops.