The NP-PA500 supports a maximum resolution of 1920 x 1200 (WUXGA). That's over seven times the resolution of the most frequently found supported graphics resolutions of 640 x 480 (VGA) (which is also supported by this NEC projector). In addition, this NEC data projector support supported graphics resolutionss of 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1400 x 1050 (SXGA+) and 1600 x 1200 (UXGA) and 800 x 600 (SVGA).
This projector's resolution (1920 x 1200 (WUXGA)) is in fact the best supported resolution across all multimedia projectors that have been available for a similar time to the NP-PA500.
A 640 x 480 (VGA) supported graphics resolutions is the worst supported resolution amongst comparable types of projector.