"Mac external displays for designers and developers"
I just acquired a new MacBook Pro (more on that later), and am considering my options for an external monitor. The linked article and chart is the best description of the usability of different resolutions by monitor size (PPI) I've seen. I'm currently waffling between the obvious choice--the LG 5K monitor at retina resolution--and the LG 34UC99 which runs 110 PPI, but at an amazing 37.5". So it's down to real estate vs. Retina.
Mac external displays for designers and developers
If you’re considering an external display for your Mac, there’s a few important decisions to make. Apple doesn’t sell external displays any more, so you can’t just default to their wisdom. That’s an issue, because not all displays are well suited for Macs.