Cake question

Hi,

Is there any difference if I use:

Cake as queue as queue tree with mangle of upload and download bandwidth

and
Cake as simple queue?

Is that a chocolate, lemon, carrot, or white cake? Sorry, couldn’t resist.
Can’t help on your Common Applications Kept Enhanced queue.

I mean if the simple queue with cake without mangle is less using procesor? If the cake works the same in simple/tree queue or if it works better with mangle?