Which CPUTYPE in make.conf?

[Mike Clarke]

I have a AMD Athlon 4850e which is described as "Athlon 64 X2" 
Dual-Core" processor.

/usr/share/examples/etc/make.conf lists recognised CPU types, but which 
of athlon64, athlon-mp or athlon-xp is the most appropriate for this 
CPU? I've been using "athlon64" so far without any problems but I don't 
know if it's the most appropriate choice or if there's even any 
significant difference between them.

-- 
Mike Clarke