You are looking to purchase two DIMMs running at 400 MHz. You find DIMMs advertised at

PC4000 and PC3200. Which do you purchase?

Given:

Two DIMMs that run on 400 MHz

The DIMMs are advertised as PC4000 and PC3200.

To find:Which one between PC4000 and PC3200 should be purchased.

Solution:

The speed of a DIMM is indicated by its PC rating...