For graphic design work, what Mac would you choose and why?
Would it be better to have a Mac mini or a Mac book pro? Both to be connected to a Studio Display or some other display 😉
The short answer is; 'it depends'. No seriously, it really does. 'Graphic Design' is a loose term that encompasses all sorts of aspects of work, from fine illustration to corporate branding. No graphic designer does everything; most specialise in fairly small niches, and get good at that. There are people who specialise in typography, and those who create complex cutaway illustrations of industrial machinery, for example. So each designer will have their own unique set of requirements as to what equipment they need, including computers. Things like screen size may be more important to some than others; those working with large complex pieces of work might like a large screen, whilst those working on smaller or simpler elements might be fine with a laptop. I produced logos and corporate branding for small businesses, some years ago, and did quite a lot of work on an iMac G3 with a 15" CRT display. It was a little cramped, I have to admit, and I was pleased to move to a MacPro with a 19" display. As screens got larger and tech improved, I ended up being happy with a 24" screen, so I'm very happy with my 24" M1 iMac. I did try a 28", but that felt just a little too large. Everyone has their own preferences. I know people who work with others in teams, and who often use large displays (like massive tellies, 85"+, and projection screens) for discussing projects. Many like to have a large 27"+ screen at their workstation, so that others can see what they're doing more easily, or they like to have multiple palettes and things on screen. Some like multiple screens. I personally don't like too much distraction, so a relatively 'small' screen is just right. I've just done a quick bit of video editing, and felt no need for anything larger. I do know a video editor who uses a ultra wide screen just for his timeline window. So; horses for courses.
If portability is important, then of course a laptop is the best choice. For many fields of design, even a basic MacBook Air will have more than adequate 'power' to produce all kinds of wonderful creative things. Obviously you can plug into a larger display if so needed. I run Illustrator, Photoshop etc with no issues at all on my iMac. Perhaps get the max RAM so you can work with multiple apps at once. But tbh, even an iPad will often do the job in terms of computing power. If you get into complex multi-layered Photoshop and that, or 3D stuff, then perhaps something like the Studio will be a better bet. But the TL;DR: version is to choose something that suits the work you will be doing. Vector graphics work using Illustrator or similar, won't be as demanding as other tasks.
So in conclusion, the answer is 'how long is a piece of string'.