
In the meantime another separate team at ATI has finished the R580 and successfully taped it out a couples of week ago. This chip only needed to be taped out once while the R520 which needed three tape outs before ATI was satisfied.
The R580 is expected to have some more pipelines, some architectural upgrades and a higher clockspeed. Launch date is unknown but it will probably take until Christmas or later before this chip will arrive in retail stores.