The highest resolution supported by the EH415ST is 1920 x 1200 (WUXGA). That's over four times the resolution of a 800 x 600 (SVGA) multimedia projector, which is the most common resolution supported by 15000:1 contrast ratio projectors that came out around the same time as the EH415ST. 800 x 600 (SVGA) is also supported by this multimedia projector. This Optoma data projector also support graphics resolutions of 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 800 (WXGA), 1400 x 1050 (SXGA+), 1440 x 900 (WXGA+), 1600 x 1200 (UXGA) and 1920 x 1080 (HD 1080) and 640 x 480 (VGA).
This multimedia projector's resolution (1920 x 1200 (WUXGA)) is actually the best supported resolution amongst all comparable spec multimedia projectors that are a similar age to the EH415ST.
The worst supported resolution amongst similar types of multimedia projector is 800 x 600 (SVGA).