The highest resolution supported by the PT-DW640 is 1920 x 1200 (WUXGA). That's over seven times the resolution of the most frequently found graphics resolution of 640 x 480 (VGA) (which is also supported by this multimedia projector). In addition, this Panasonic projector supports a graphics resolution of 1280 x 800 (WXGA).
This projector's resolution (1920 x 1200 (WUXGA)) is in fact the best supported resolution amongst all 2000:1 contrast ratio data projectors that have been around for a comparable time to the PT-DW640.
Amongst similar types of projector the worst supported resolution is 640 x 480 (VGA).