Tualatin = Intel
Athlon4 = AMD
The Tualatin (currently) is the next, newer version of the Pentium 3, with .13 micron technology and a doubled (512k) L2 cache.
The Athlon4 is also .13 micron, and is the next series of AMD processors. It's based on the Palamino core.
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Apple? Macintosh? What are these strange words you speak?