The Benq W7000+ supports a maximum resolution of 1920 x 1200 (WUXGA). That's over seven times the resolution of the most frequently found graphics resolution of 640 x 480 (VGA).
A 1920 x 1200 (WUXGA) graphics resolution is actually the best supported resolution across all similar spec projectors that came out around the same time as the W7000+.
The worst supported resolution amongst similar types of multimedia projector is 640 x 480 (VGA).
If the resolution of this projector is too low for you then you might also want to consider the Epson EH-TW7200 (1920 x 1080 (HD 1080 and cheaper) and cheaper).