Some info I've found from this place
http://mp3.zonebg.com/cpu/cpu.php
Athlon XP Processor
Core Thoroughbred-B
CPU Model 8
Manufacturing Process 130 nm
Approximate Transistor Count 37.6 million
Approximate Die Size 84 sq. mm
Performance Rating 1800+
Working frequency 1533 MHz
Package Type OPGA
Operating Voltage 1.6 V
Max Die Temperature 90° C
L1 Cache Size 128 KB
L2 Cache Size 256 KB
Multiplier 11.5x
FSB Frequency 266 MHz
Stepping Code SIXIB
Manufacture Year 2003
Manufacture Week 45
Production Batch M
Batch Production Number 0248