The highest resolution supported by the PT-RZ475 is 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 projector). In addition, this Panasonic projector supports a supported graphics resolutions of 1920 x 1080 (HD 1080).
A 1920 x 1200 (WUXGA) supported graphics resolutions is actually the best supported resolution amongst all comparable spec projectors that have been on the market for around the same time as the PT-RZ475.
The worst supported resolution across similar types of multimedia projector is 640 x 480 (VGA).