The Optoma TX765 supports a maximum resolution of 1920 x 1200 (WUXGA). That's 20% more resolution than a 1600 x 1200 (UXGA) projector, which is the most frequently found resolution supported by data projectors of this type and age. 1600 x 1200 (UXGA) is also supported by this data projector. This projector also support graphics resolutions of 1024 x 768 (XGA), 1400 x 1050 (SXGA+) and 640 x 480 (VGA) and 800 x 600 (SVGA).
This projector's resolution (1920 x 1200 (WUXGA)) is actually the best supported resolution amongst all similar spec multimedia projectors that were released around the same time as the TX765.
A 640 x 480 (VGA) graphics resolution is the worst supported resolution amongst similar types of projector.