The PT-EZ770 supports a maximum resolution of 1920 x 1200 (WUXGA). That's over seven times the resolution of a 640 x 480 (VGA) data projector, which is the most frequently found resolution supported by comparable spec data projectors that have been available for around the same time as the PT-EZ770. 640 x 480 (VGA) is also supported by this multimedia projector.
A 1920 x 1200 (WUXGA) graphics resolution is actually the best supported resolution amongst all projectors that were released more than two years ago.
Amongst similar types of multimedia projector the worst supported resolution is 640 x 480 (VGA).