The highest resolution supported by the PJ HD5450 is 1920 x 1080 (HD 1080). That's over six times the resolution of a 640 x 480 (VGA) multimedia projector, which is the most common resolution supported by projectors of this age and spec. 640 x 480 (VGA) is also supported by this multimedia projector. This data projector also support supported graphics resolutionss of 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1280 x 800 (WXGA) and 1360 x 768 (WXGA) and 1680 x 1050 (WSXGA+).
A 1920 x 1080 (HD 1080) supported graphics resolutions is actually the best supported resolution across all projectors of a comparable spec and age to the PJ HD5450.
A 640 x 480 (VGA) supported graphics resolutions is the worst supported resolution across comparable types of multimedia projector.