The highest resolution supported by the NEC NP-P451 is 1600 x 1200 (UXGA). That's over six times the resolution of the most common supported graphics resolutions of 640 x 480 (VGA) (which is also supported by this projector). This multimedia projector also support supported graphics resolutionss of 1280 x 1024 (SXGA), 1280 x 800 (WXGA) and 1400 x 1050 (SXGA+) and 800 x 600 (SVGA).
A 1600 x 1200 (UXGA) supported graphics resolutions is in fact the best supported resolution amongst all projectors of this age and type.
Amongst similar types of projector the worst supported resolution is 640 x 480 (VGA).