Both are 24" and 16:10. Dell uses a PVA screen while the HP uses an IPS. It would be used as a general purpose monitor where color and clarity are real important (somewhat compromised eyesight) but photo viewing and editing and viewing is more important then very fast motion such as FPS games (although hopefully both would do a good job at viewing video). Also, not often discussed in reviews, does one downsize resolution better then the other? Or would you spend your $550 on something else? The $1000 plus monitors frequently recommended in this forum's buying guide are way out of my price range, even $550 is a stretch. I currently use a Viewsonic VP930b (19" PVA) but want more real estate and higher resolution.