The highest resolution supported by the Sony VPL-VW1100ES is 4096 x 2160. That's over four times the resolution of a 1600 x 1200 (UXGA) data projector, which is the most common resolution supported by multimedia projectors that were released around the same time as the VPL-VW1100ES. This projector also supports a graphics resolution of 3840 x 2160.
This projector's resolution (4096 x 2160) is in fact the best supported resolution across all projectors of this age and type.
Across comparable types of projector the worst supported resolution is 640 x 400.