Should be fine.

by R. Proffitt Moderator - 1/10/12 11:31 AM

In Reply to: 400 RAM speed for iBook 1.33 ok? by Joselín

It's always be fine to have higher speed or better than the spec parts. Not much has happened to change that advice for close to a few centuries now.

There are some other dozen parameters such as page sizes and such but speed is an easy one.
Bob