Monitor suggestions Freesync/Gsync questions

[allenb]

I am looking for suggestions for monitor to go into an arcade. A 32 with a thin bezel would fit, but 27" should suffice. A CRT won't fit in the cabinet (too thick and heavy).

I am curious is there a difference in freesync over gsync to matching the arcades original output. Freesync monitors advertise ranges that they cover, but Gsync does not. They both appear to have a floor of 30-48 Hz depending on the monitor, but the Gsync monitors do not seem to advertise the data. It looks like both technologies will adjust to the framerate by duplicating frames.

Is there any reason to be concerned about the low end of the frequency ranges.

Should I look for a monitor that will reach the minimum of 30?

Is there a reason to be concerned about the top end for arcade type games 144 (not just emulation)?

Is there a real benefit to Gsync over freesync now?