The highest resolution supported by the Benq TW529 is 1920 x 1200 (WUXGA). That's over seven times the resolution of a 640 x 480 (VGA) data projector, which is the most common resolution supported by comparable spec data projectors that were launched around the same time as the TW529. 640 x 480 (VGA) is also supported by this projector.
A 1920 x 1200 (WUXGA) supported graphics resolutions is in fact the best supported resolution across all new multimedia projectors.
Across similar types of multimedia projector the worst supported resolution is 640 x 480 (VGA).