Yes, RDP is almost certainly a perfect superset of the VNC model -- unless VirtualBox's graphics drivers do tons of magic, chances are high that all its RDP ser

Yes, RDP is almost certainly a perfect superset of the VNC model -- unless VirtualBox's graphics drivers do tons of magic, chances are high that all its RDP server has to work with is a constantly changing bitmap to send differences for. AFAIK (and from anecdotal experience) Windows RDP beats that by a long shot (e.g. can preserve the semantics of Bitblt GDI calls and suchlike)