Yeah, I know. I mean, JonoF codes it too (since ProAsm gets updates from JonoF's svn whenever there happen to be any, which is admittedly pretty rare) but I know what you're saying. That's part of why it's an apples to oranges comparison.
ZaphodB: does "vidmode 1680 1050 32" in the console work for you? If not, ProAsm needs to increase the MAXXDIM and MAXYDIM defines in build.h. The max in EDuke32 is currently 3072x2304, so those should be safe values to use.