The highest resolution supported by the Panasonic PT-TW340E 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 data projectors of this age and type. 640 x 480 (VGA) is also supported by this data projector.
This projector's resolution (1920 x 1200 (WUXGA)) is in fact the best supported resolution amongst all projectors of a similar type and age to the PT-TW340E.
A 640 x 480 (VGA) supported graphics resolutions is the worst supported resolution amongst similar types of projector.