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 multimedia projectors of a comparable type and age to the MX764. 640 x 480 (VGA) is also supported by this Benq projector.
A 1600 x 1200 (UXGA) graphics resolution is actually the best supported resolution across all projectors of this age and type.
Across similar types of multimedia projector the worst supported resolution is 640 x 480 (VGA).