Is there a performance difference among having 2 enterFrames over 1 object or

Is there any performance difference among having 2 enterFrames over 1 object ‘N’; or having 1 enterFrame over the same object ‘N’.

ie:
//from objectA
main.addEventListener(Event.ENTER_FRAME, onEnterA);
funtion onEnterA(){
//objectA actions
}

//from objectB
main.addEventListener(Event.ENTER_FRAME, onEnterB);
funtion onEnterB(){
//objectB actions
}

VS

//from main
this.addEventListener(Event.ENTER_FRAME, onEnterMain);
funtion onEnterMain(){
//objectA actions
//objectB actions
}