If Barcelona lives up to its hype then they will have something that will compete against the 5300 series of Xeon's. This just wont happen if they can't get their 65nm process down. The Barcelona might be the best CPU design since slice bread. Yes, I know I mixing my metaphors.
Bu t if they can't produce the Brisbanes in volume, then as each week goes by were we don't see any of the Brisbane cores I'm going to say there will be a week by week push of significant Barcelona production.
Also, remember that the Barcelona core is over 200mm, that just reduces their production numbers both because of the limited number you can fit on a wafer and the yield issue is going to affect them worse than Intel. Intel will always be able to produce more Quad core processors per wafer because they will be able to produce a higher number of good parts per wafter because they parts are starting out smaller.
I mean you can't tell me that AMD can't make put to X2 parts together and make quad core that way. They already have the HT links to do that with and the latency thing seen with the 4x4 would be greatly reduced. I don't know if it is pride and all the bull about Intel's clued together approach has painted them into a corner or just a limitation in their processor packaging technology.
Okay, I got my venting done.