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

If you run a single threaded app only ghz matters, though the architecture might speed things up 10-20% between processor families.