The card codenamed R800, something that AMD plans to brand as Radeon HD 5870 X2, will not be launching simultaneously with the single chi Radeon HD 5870 card codenamed Cypress.

The top-end dual-GPU enthusiast card, Radeon HD 5870 X2, should come roughly a month after Radeon HD 5870 which is scheduled for September 22rd / 23rd depending on the global region.

On another note, the chips are ready, but AMD needed a bit more time to polish the drivers and the card itself, and therefore had to delay the card.