AMD Shanghai is officially out

[informal]

You are expecting to see someone overclock the server chip??
There won't be any OCing of Shanghai.Deneb if launched in late Nov or Dec time frame can show us the OCing potential.By the eetimes article i just read,Shanghai fixed leakage issue Barcelona had :

the transistor drive current for AMD's 45-nm devices is much lower than that of the Intel HKMG transistors. But power consumption is quickly becoming a high priority for server chips. AMD's transistors exhibit very low channel leakage. Our transistor benchmarks indicates that leakage current is less than one-third of the value measured on AMD's 65-nm process. It's also significantly lower than the Intel 45-nm HKMG process. In fact the Ion/Ioff ratio for AMD's PFET is nearly 10 times better than that for the Intel PFET.

Early C0 and C1 samples showed up to 4.2Ghz OCing(MSI engineer over at coolaler could run Super pi up to 4.1Ghz IIRC) which is a direct confirmation of the quote above.Also it appears Deneb ES run very cool and consume a lot less power than Agena(both at stock and OC).