I found this little program on a notebook forum:
ftp://pi.super-computing.org/windows/super_pi.zip
Download it and run the program to measure the time it takes to calculate PI to 2 million digits
Post your system, processor, RAM, etc.
I'll start:
Dell Inspiron 600m
Pentium M 715 (1.5 GHz)
512 MB RAM
3m 47s
Hypersonic Aviator GX8
Pentium 4 3.2 GHz Extreme Edition
1024 MB RAM
1m 41s