Nope, intensity is not higher with a tighter beam. A very common misconception.
Throw (cd) = luminance_of_lightsource (cd/mm^2) x surface_area_of_reflector_as_seen_from_hotspot (mm^2)
It’s that simple! You can actually calculate the luminous intensity and thus throw of a light before building it. It’s very accurate as long as your base values are accurate.
Of course this has nothing to do with how practical the beam of a light is or how big the spot is etc. Only the pure throw can be easily calculated.
Also see Dr.Jones explanation here: Flashlight Optics - Dome, Dedoming and Throw