The Benq MX764 supports a maximum resolution of 1600 x 1200 (UXGA). That's over six times the resolution of a 640 x 480 (VGA) projector, which is the most frequently found resolution supported by comparable spec multimedia projectors that were launched more than two years ago. 640 x 480 (VGA) is also supported by this data projector.
A 1600 x 1200 (UXGA) supported graphics resolutions is in fact the best supported resolution across all similar spec multimedia projectors that were launched around the same time as the MX764.
A 640 x 480 (VGA) supported graphics resolutions is the worst supported resolution across similar types of projector.