Bests & Worsts Reviews from Amazon

I upgraded frrom a 27 inch Benq 1080p to the PD2500Q. The 1080p is fine as a TV, but was a little fuzzy as a monitor. The new monitor is performing as expected: no dead pixels, great color, sharp image. I researched the resolution/screen size issue a fair amount. Here, I will provide a handy table that boils down the blizzard of resolution numbers. I will discuss the option of 4K. Finally, there was one issue with the setup that was easily resolved and I will provide the steps I followed. First, resolution. If your eyes are pretty good (maybe you use reading glasses for fine print only), the fact that some things are kind of small on a 25 inch QHD screen and don't scale (see below for a brief discussion of the scaling issue) is okay. If you are concerned about some screen items being too small, get the 27 inch screen: the pixels will be farther apart, so images will be a little bigger and almost as sharp. The chart below provides the percent of pixels per square inch relative to the PD2500Q (100 percent) for some common display options. Pixels per square inch is probably the best single indicator of how sharp a display will look to your eye. FHD 27 inch 1080p: 48 (fuzzy monitor; fine TV) 25 inch 1080p: 56 24 inch 1080p: 61 21.5 inch 1080p: 76 (looks pretty good on my second monitor) QHD 32 inch 1440p: 61 27 inch 1440p: 86 (many call this resolution/screen size combination the "sweet spot") 25 inch 1440p: 100 (sharp, small display items; I like it) 24 inch 1440p: 108 UHD 32 inch 4K: 137 27 inch 4K: 193 (perhaps too much of a good thing) As best I can tell hunting around on the web, 4K resolution is something like a car that goes 210 mph — often useless and maybe even bad. I'm far from an expert on the whole scaling issue, but the bottom line is not everything in your interface will scale perfectlly, so even if your computer can handle 4K resolution, you might have some troubles with the size of some text items, buttons, icons, and so forth, problems that cannot necessarily be magnified away easily or effectively. The internet seemed pretty unified on the "most users should not (yet) jump to 4K" advice but, as always, YMMV. No doubt 4K is amazing as long as it matches the person and the system. Only one hiccup in the setup. The monitor is set by default for displayport (dp) 1.2. When I first connected the monitor using the displayport cable, I got nothing. I then connected the monitor using the HDMI cable and got a 1080p display since this is all HDMI on a 2012 mac mini supports. Then I used the buttons at the bottom right of the monitor to find the menu>system>displayport>1.1 setting. Then I connected the monitor using the displayport cable and got the much nicer QHD image. Summary: Use dp 1.1 for older computers; 4K is probably overkill; 25 or 27 inch diagonal at 1440p is great. Please say so if this was useful to you. Good luck.