The highest resolution supported by the Benq MX528 is 1920 x 1200 (WUXGA). That's over seven times the resolution of the most frequently found graphics resolution of 640 x 480 (VGA).
A 1920 x 1200 (WUXGA) graphics resolution is in fact the best supported resolution amongst all latest 13000:1 contrast ratio multimedia projectors.
A 640 x 480 (VGA) graphics resolution is the worst supported resolution amongst similar types of data projector.
We think you might also be interested in some of the other projectors that support a resolution of 640 x 480 (VGA)|1920 x 1200 (WUXGA) currently available including cheaper data projectors such as the TW529 (£329.99), the MS527 (£237.19), or the MW529 (£299.25) all from Benq.