I appreciate this is at risk of encouraging opinion based answers, but I hope it doesn’t get closed.
I have a 12 year old Dell XPS-8300 (64 bit, Intel i5-2400, 3.1GHz; total 12GB DDR3 RAM (1333MHz); 1TB SSD). Windows 10 ran at a glacial pace but Ubuntu 20.04.3 LTS desktop worked fine so I gave it to my 12 year old son. We then spent Christmas building a new PC (great fun! - and I was really chuffed that he uses Ubuntu in preference to Windows 11 on this dual boot system) and thought we’d use the old one for a Minecraft Java server for him and his friends which works well. Its only use is as the MC server; I might put a MC bedrock edition server on it at some point too but nothing else planned.
When I put the SSD in to replace the old spinning HDD, I thought I’d try Ubuntu 20.04.3 LTS server edition; in all honesty, I think I’d have managed but it was going to take so much longer than I had, that I ended up giving up and using dd to clone the HDD onto the new SSD and it’s all working well and a bit faster / less laggy with the faster hard drive.
So my question is – how much benefit would I expect from using Ubuntu server instead of Desktop? It’s now headless so we don’t use the GUI at all (we ssh in to it to start and stop the server / backup / shutdown etc.) … but it would take me a bit of effort to understand fully how to install Java JRE / the server itself etc. without any of the GUI tools. If it is likely to make a massive difference then I’d do it.
In terms of pinch-points in the system, I suspect the 12 year old processor is the main factor - the memory is big enough but possibly a bit slow, the SSD is huge for this purpose and good, the ethernet connection is pretty good.
The related question I guess is – would it be better to install server edition and install a GUI (which I could then remove)? I'm just not sure how much system resource the GUI (and any other things on desktop that aren't present on server) takes up.
Thank you.