AMD Opteron Processor Number Meaning?

[HardwareSeeker]

Hi,
Can someone explain me or give me links to some explanation on the Opteron model numbering?
What they mean, what is the difference between them and so on.

Thank you very much

 

[qcmadness]

http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118_8796_14266,00.html