Nice to see you follow me Olivon. Actually,Barcelona was a fail only on clock domain.On server workloads it did better,even on 1P,than FSB based Conroe MCM chips.INtel did crank up the clocks on Penryn and in the end made up the difference. If you look at Shanghai vs Penryn,both on 45nm,there is no contest actually. Shanghai is a clear cut winner in int and fp MT workloads.
Opteron 2389( 2.9Ghz,2P,45nm)
spec int rate 141
spec fp rate 121
Intel Xeon X5450( 3.00 GHz,2P,45nm)
spec int rate 130
spec fp rate 74.1
2.9Ghz Shanghai is 8.4% faster than 3Ghz Penryn in spec int rate 2006 (12% faster per clock)
2.9Ghz Shanghai is 63% faster than 3Ghz Penryn in spec fp rate 2006 (68% faster per clock)
I rest my case
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