ATi will be introducing new high end products in coming August
Posted by overclocker at 12:30 ATi will be introducing the R580+ models namely Radeon X1950XTX and Radeon X1950 CrossFire edition and a 256M Radeon 1900XT in August 2006.

The Radeon X1950XTX is based on R580+ core and has 512MB GDDR4. The Radeon X1950 CrossFire Edition will also be announced right after the X1950XTX.

In a few more days, ATi will also release a 256M version of the Radeon X1900XT.
http://www.ocwforums.com/bbs/showthread.php?t=54021

thx2 Smeli