A flicker fixer is required to view interlaced screen modes, otherwise the resolution is halves.
VGA or multiscan modes dont need scandoubler.
With overscan you might be able to get to 800x600 in some amiga modes.
Using an interlaced screen modes and a flicker fixer (instead of dblpal/ntsc) halves the required chip-memory bandwidth making things which use chip-RAM work faster.
Last edited by alexh; 21 June 2007 at 10:15.