advantage of cf card vs: ram

can someone just tell me the advantages of filling up ram -
against having CF-cards inserted.

can i save/load from ram the same as i would from a CF-card?
or is there any difference?
i didn`t find anything in the manual, just the CF-thing
thank you

two totally different things, brother.

RAM gives you more sample time

CF cards are for saving your beats

now i understand, THANkS.