[PHP] Dual Pentium Pro 200 vs. Single Pentium II 450

[Phil Schwarzmann]

I have two PCs, one is a Dual Pentium Pro 200Mhz and the other is a
Pentium II 450Mhz (both have 64MB)
 
I want to set one of them up using Linux Red Hat 7.2, Apache, MySQL,
and PHP.  I only plan to have about 1-3 users accessing it at any one
time.
 
Which of those CPUs do you think is better?  Will Linux take full
advantage of those Dual Processors?
 
Thanks for your advice!