AMD Athlon XP 1500+
The Athlon XP 1500+ is the slowest standard desktop version of the Athlon XP. It was released on October 9th, 2001 along with the 1600+, 1700+ and 1800+ models. The Athlon XP succeeded the standard Athlon 'Thunderbird'. The Athlon XP 1500+ I have is from the 41th week of 2001; that's 8 to 14th October so this CPU was manufactured in the week when AMD announced it making it an early production model.
This particular Athlon XP has a brown packaging. I also have one with the green packaging. There is no difference in the packaging except for the color. However, not all Athlon XP's are 100% identical in terms of overclocking. On the 'die' this CPU reads AGKGA as 'stepping code'. Palomino's came in different kind of steppings in which AGOIA, AROIA and AROGA should usually be the ones that overclock better than AGKGA.