best stepping for Opteron 146

[rickyman]

what is the best stepping for Opteron 146?

 

[Shimmishim]

CABNE 0530APMW but since these are pretty much impossible to find now

CABYE 0540FP()W ()=A,B,M seem to be getting up to 3.0 ghz as well.

CAB2E also seem to be decent as well.