what's the difference?

[BigRat]

What is an AXIA or AVIA T-bird? Are there any other type? and what are the differences?

I'm not dumb. Neither am I stupid. I'm just not that smart

 

[gjkozick]

It refers to the three lines of code printed on the cpu die. It is thought that chips with specific codes are better for overclocking. Go here http://www.athlonoc.com/stepping1.htm and you will find more information.