Any designers working on 4K iMacs with Creative Cloud?

Hello all,

Admittedly, this topic is actually something I'm trying to figure out whether today's graphic designers/illustrators are migrating to 4K rather than staying on 1080p. I have a mid-2010 iMac running on High Sierra and now with Creative Cloud. I do mostly print and digital work but I've been eyeing a 4K iMac or 5K iMac 27 inches for some time, so I'm very curious if any of you find any benefit to working on 4K doing digital or print based graphic design/illustration work.

I'm going to need a new machine eventually with an SSD and re-install Creative Cloud as a second machine as per CC regulations allow. The reason I thought of 4K was to future proof the workflow in case a client needs 4K output and if it's print, then I assume screen resolution makes no difference let alone the DPI level for output. I've worked on a 27 inch iMac at a local print shop several years ago which was a godsend to my eyes and see bigger page spreads for production layout work. But these days, I'm now doing freelance work so I'm still deciding on which machine to go for. 5K might be overkill but 4K is probably sensible enough for most digital art/illustration/graphic design work.

Any thoughts? Thanks!