The Optoma EH415 has a maximum resolution of 1080p (1920x1080). That's over two times the resolution of the most common native projector resolution of XGA (1024x768).
A 1080p (1920x1080) native projector resolution is in fact the best resolution across all projectors of a similar age and spec to the EH415.
Across comparable types of projector the worst resolution is SVGA (800x600).
We compared all the other projectors that have a resolution of 1080p (1920x1080) to this multimedia projector and we think the Optoma EH300 ($1,406.29) which is cheaper is also worth considering.