http://biz.yahoo.com/iw/070604/0261144.html
Cray uses AMD Opterons for it's computers. The XT4 is its first computer that can utilize quad core Opterons. Based on it's comments about "volume parts availability" you can draw your own inferences.
Global supercomputer leader Cray Inc. (NasdaqGM:CRAY - News) today announced that due to recent information with respect to the timing of volume parts availability, the company now believes that 2007 revenue associated with quad-core Cray XT4™ systems will likely be less than previously anticipated. Cray continues to anticipate deliveries of quad-core Cray XT4 systems and upgrades to begin during the fourth quarter of 2007; however, the timing is such that most or all of the planned acceptances, and associated revenue recognition, will likely be deferred until early 2008.
Cray uses AMD Opterons for it's computers. The XT4 is its first computer that can utilize quad core Opterons. Based on it's comments about "volume parts availability" you can draw your own inferences.