ATI plans to have Radeon HD 4870 X2 ready for the last week of August and this should include retail shipments of the cards to partners.

Partners should get the evaluation samples in a week's time, but something will delay mass production to late August and it's not the driver.

All GDDR5 boards with 2GB memory will be built by ATI but there is a chance that ATI will let its partners to make some of the GDDR3 boards.

The board comes with interconnection bridge chip but we’ve heard that this time PCIe bridge supports PCIe 2.0 while the one on 3870 X2 could only support PCIe 1.1 interface.