im a stupid ass

I want to buy a new processor and i dont know what all the shit indicators are ,back in my time only GHZ matters now ;'\
what the fuck is?
64 3000+ /2.0ghz
sp 3300+ /2.0ghz
why this
165 /1.80 ghz cost a shit load of momey more than the others 2?
someone please explain

Opteron 165 is worth the extra expense ontop of the Athlon 64 X2 3800. But only if you want Dual Core. If you want single core; go a 3700+