Are you sure? according to anandtech article (11 may)
http://www.anandtech.com/cpuchipsets...oc.aspx?i=2986
"Barcelona Demos and Motherboards
Much to our dismay and definitely against our recommendations, AMD will not follow in Intel's footsteps and let us do a performance preview of Agena or Barcelona. In fact, AMD wouldn't even let us know what clock speeds its demo systems were running at. While we cautioned AMD that a lack of information disclosure at this point would only reinforce this idea that AMD is lagging far behind Intel, AMD's counterpoint does have some validity. AMD's reasoning for not disclosing more information today has to do with not wanting to show all of its cards up front, and to give Intel the opportunity to react. We still don't believe it's the right decision, and we can't help but believe that the reason for not disclosing performance today is because performance isn't where it needs to be, but only AMD knows for sure at this point."
So if even anandtech which was invited to the 10 may demo hasn't had the right to bench, it's curious that nda ends 14?