Hey there theangus17,
I'm sorry about the late response, thank you for being patient! Were you able to find out that resolution question? If not, I'd be happy to help out! So, the majority of 4K displays come with 3840 x 2160 pixel resolution. With your stats showing you have a resolution of 3840x2160@30, it is telling you that you have a 4K display with a frame-rate of 30 frames per second.
I hope that answers your question! If you have any other questions or concerns for me, please let me know.
We haven't heard back from theangus17, and it's been a few days, so I'm locking the thread. As always, feel free to make a new thread if you have any more questions or concerns.
Have a good one!