I'm not quite sure I understand you correctly but.....
resolution of the original arcade game, much higher than 640 * 480 pixels.
so original arcade screen size is larger than our the PC monitor.
I am , played 50-inch to size on screen , street fighter 2 games, an arcade room in Istanbul , and there is not no way anywhere distortion at, to display image .
( even so belonging to Far East was a copy of the original arcade game )