Prgram/site that calculates GHZ?

Hi all,
Do any of you know a site/program where you provide the desired cpu speeds and they tell you the different option that can reach that speed?

EX:
2.4 ghz =
FSB X Mult
Vcore:
Etc, etc..
thanks!

Overclocking is not a linear equation. You can't just say that such and such processor WILL do said GHz at this vcore, because it doesn't work like that.

I'm not saying that it should be guaranteed but i have seen sites before that calculated speeds. Unfortunatley it was mostly for old CPU's.