Hey Ben,
Please comment when/where you feel compelled to do so.
The subject of DAWs (especially performance related) is an area where I have a lot of knowledge/experience.
Most of my adult life has been spec'ing, building, testing, and supporting DAWs.
From Intel's website:Max Resolution (HDMI 1.4) 4096x2304@24HzMax Resolution (DP) 4096x2304@60Hz So yes, you can run a single 4k monitor from the UHD-630 graphics... if you use the Display Port (60Hz refresh rate).
What you don't want to do is run a second 4k monitor using the HDMI port (24Hz refresh rate).
That'll give you eye-strain headaches and mouse movement will be jerky.
DVI-D doesn't have enough resolution to run 4k.
If you want to run 4k monitors (plural), you want a GTX video card.
That was my statement in the previous post.