CPUTYPE?=???

[fbsdmail at dnswatch.com]

Greetings,
 I'm currently working with an Athlon II X3 440:

http://www.amd.com/us/products/desktop/processors/athlon-ii-x2/Pages/AMD-athlon-ii-x2-processor-model-numbers-feature-comparison.aspx

soon to be replaced with the Phenom II X6 1090:

http://www.amd.com/US/PRODUCTS/DESKTOP/PROCESSORS/PHENOM-II/Pages/phenom-ii-model-number-comparison.aspx

My question is, make(1) provides for options regarding the CPU in use
on the system (CPUTYPE) in make.conf(1).
My problem is, I am not sure which of the offered "types", or "codenames"
is the most accurate for my current CPU. Those offered for AMD CPU's are:
(AMD CPUs)
opteron athlon64 athlon-mp athlon-xp athlon-4 athlon-tbird athlon k8 k6-3
k6-2 k6 k5

and AMD64 architecture:
opteron, athlon64, nocona, prescott, core2

While I realize that is is purported that Openssl is the only port that
makes use of this FLAG, I have also noticed other ports that also look/
grope for this.

Thank you for all your time and consideration in this matter.

--Chris