The Optoma HD25-LV supports a maximum resolution of 1920 x 1200 (WUXGA). That's over two times the resolution of the most frequently found graphics resolution of 1024 x 768 (XGA) (which is also supported by this Optoma data projector). This multimedia projector also support graphics resolutions of 640 x 480 (VGA), 800 x 600 (SVGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1280 x 800 (WXGA), 1360 x 768 (WXGA), 1400 x 1050 (SXGA+) and 1440 x 900 (WXGA+) and 1600 x 1200 (UXGA).
A 1920 x 1200 (WUXGA) graphics resolution is actually the best supported resolution amongst all multimedia projectors of a comparable age and spec to the HD25-LV.
Amongst similar types of projector the worst supported resolution is 640 x 480 (VGA).