Understanding 3 different model IDs for the exact same A64 3500+?

[Frederf]

At 3gcomputer.com there is for sale three Athlon 64 pin 939 3500+
processors.

Model numbers are:

AMDA6435BPBX $208.99
ADA3500ASBOX $213.99
ADA3500AWBOX $204.99

This is not intended as an advertisement for the website or AMD. What
it is is linked evidence of seemingly the same product for sale under 3
different model numbers for 3 differerent prices. Can anyone clarify my
confusion here?

 

[Frederf]

These two google groups threads seem to show the answer.

http://groups.google.com/group/alt....&q=ada3500awbox&rnum=1&hl=en#1e58f282bfaf25de
http://groups.google.com/group/alt....&q=ada3500awbox&rnum=2&hl=en#6fec71c0f222e556

AW is likely the Newcastle core
BP is likely the Venice core

What core is associated with "AS"?

 

[Ozzy]

Just to add some info that could be useful, in amd's website at
http://www.amdcompare.com/us-en/desktop/Default.aspx you can find info on
the different part numbers as they are marked on the processor itself or on
the boxed product. There is a similar url for Opteron processors.