The highest resolution supported by the NEC PX800X is 1920 x 1200 (WUXGA). That's over seven times the resolution of a 640 x 480 (VGA) data projector, which is the most frequently found resolution supported by 2100:1 contrast ratio projectors that are a similar age to the PX800X. 640 x 480 (VGA) is also supported by this multimedia projector. This data projector also supports a supported graphics resolutions of 1024 x 768 (XGA).
A 1920 x 1200 (WUXGA) supported graphics resolutions is in fact the best supported resolution amongst all 2100:1 contrast ratio projectors that were launched around the same time as the PX800X.
The worst supported resolution amongst similar types of data projector is 640 x 480 (VGA).