Only direct comparison I could find between the Vive Pre and CV1 display quality is from
UploadVR: The heavy ridges of the HTC Vives Fresnel lenses are still clearly visible if youre looking for them, especially in bright white scenes, like Solfars Everest demo, which I had a chance to try. Additionally, when watching scenes with a high amount of contrast, such as white title text on a black background, there is a noticeable amount of light flaring. This is something that Oculus specifically corrected for in the final version. Neither of these things are dealbreakers, but they do fall into the once you notice them, you cant not notice them category for me. The headset is quite good and where it loses to the Oculus Rifts consumer version in optics and display, it makes up for with robust tracking and immediate support for hand-tracked controllers