Duron 650 AKCAR stepping

[cedrik]

I just noticed that my 650Mhz Duron has AKCAR stepping.... at this stepping on the website there are only 2 cpus: 800 and 850...
It's mine a fake? If yes, my collection of fakes will grow... in not, it should be added to database.

Thank you

[gshv]

I doubt that it's a fake. There were several other steppings like this:

ADEA - ADEAR
ADFA - ADFAR
AFFA - AFFAR
AJFA - AJFAR
AKBA - AKBAR
AKCA - AKCAR
AXIA - AXIAR
AYHJA - AYHJAR

All "R" steppings seem to be much rare than non-"R" steppings. Many "R" steppings have date codes, that overlap with non-"R" steppings, therefore it's unlikely that they are later revisions of the same core.

Gennadiy