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[Apokalipse]

The fact that he has ES chips is not debatable ;-)

Yes it is.

As for the Core per Core IPC ,well i dont know, remember thats before Turbo, were talking Mhz per Mhz here.And Cores in Bd arent Full cores on their own.

If you take a look at the architecture itself, it's not hard to see that BD's IPC will not merely match K10.

As far as core scaling goes, when both BD cores in each module are being used, AMD themselves said multi-threaded performance would increase by 80% (remember 80% more than 100% is 180%)
And that's not compared to K10. That's compared to doing one thread on one BD core.

AMD also said they got "50% more performance from 33% more cores"
Of course they didn't say what type of workload. But in that context I'd assume it means something that uses >=8 threads (still not THAT specific).

If I combine their two statements:
50% more performance from 33% more cores
When both cores in each module are used, you get 80% more perormance (180% OF single threaded performance)
and assuming perfect scaling when all four modules are active, I'd conclude single threaded performance to be
[1/(1.80/2)]*(1.5/1.33)~=1.253 (are these calculations right?)
i.e. single threaded performance is about 25% better in the particular type of workload AMD tested with... but becomes 90% as much as that when both cores in each module are used (unless there's some workload where sharing the cache can result in a performance benefit)
0.9*125%=112.5%

Although yes, that's taking AMD's statements at face value.