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 data projector). This projector also support a supported graphics resolutions of 768 x 576 and 1024 x 768 (XGA).
This projector's resolution (1920 x 1200 (WUXGA)) is in fact the best supported resolution across all data projectors that have been on the market for around the same time as the CP-WX8255A.
The worst supported resolution amongst similar types of projector is 640 x 480 (VGA).