The highest resolution supported by the Infocus IN3126 is 1920 x 1200 (WUXGA). That's 20% more resolution than a 1600 x 1200 (UXGA) data projector, which is the most common resolution supported by 3000:1 contrast ratio projectors that have been on the market for a similar time to the IN3126. In addition, this Infocus projector supports a graphics resolution of 1280 x 800 (WXGA).
A 1920 x 1200 (WUXGA) graphics resolution is actually the best supported resolution across all projectors of this type and age.
Across similar types of projector the worst supported resolution is 640 x 480 (VGA).