The CP-WX8255A supports a maximum resolution of 1920 x 1200 (WUXGA). That's 20% more resolution than the most frequently found supported graphics resolutions of 1600 x 1200 (UXGA) (which is also supported by this projector). In addition, this Hitachi projector support a supported graphics resolutions of 768 x 576 and 1024 x 768 (XGA).
This projector's resolution (1920 x 1200 (WUXGA)) is actually the best supported resolution amongst all multimedia projectors that have been on the market for more than two years.
A 640 x 480 (VGA) supported graphics resolutions is the worst supported resolution amongst similar types of projector.