What does the code under AMD model number on the chip mean?

[Phamine]

http://gathering.tweakers.net/forum/view_message/19202179

I'm looking a few websites like http://www.ocforums.com/vb/vb/showthread.php?s=&threadid=244237 and under the model number on the chip shows a code starting with AQX, AQY,and AQZ.

My chip has a code of PQZFA 0347MPMW

Whats the difference?

 

[myocardia]

If it's not a brand-new chip, you can find out here. If it is, I believe AMD's homepage will be where you need to look. Just search on "stepping" or "OPN".

 

[bjc112]

Stepping, Week Created, and Location i believe.