noob question about framerate

hi everybody… (and sorry for my poor english)

I’m a pure unity newbie… (but not newbie in 3d and scripting)

I made a search in the forum but didn’t find

I don’t understand anything about how unity manages framerate

1/ first question

I suppose when we activate vsync the framerate is the same than screen’s

But when it’s disabled, is there a way to decide the framerate?
If not, how does unity manages it? I thougt it tried to reach as fast as possible but when my test runs in webplayer mode without vsync it doesn’t reach to 100% cpu

2/ second question

when vsync is activated we cannot choose framerate by ourselves so we need to time-base the scripts, i suppose unity has a sort of “timer” function or prop to know elapsed milliseconds… what’s its name?

Application.targetFrameRate.

Time.deltaTime

thx ^^