That monitor is just under 3.69 billion pixels compared to 13.5 billion on the Surface Studio. It doesn't include the dial interface, the real-life scaling, the pivot mechanism, the color profiles, a lot more. It's probably the closest you can get, but not in the same league.
The Wacom has the pressure level advantage: 2048 vs 1024 levels on the Surface. But with well-calibrated software, it should be enough. I'm not sure if people can discern 2048 levels of pressure, and I'm sure this device was tested on a lot of artists. Can't comment from experience but I would think the delay would be a bigger issue than levels (MS say they optimized for delay.)
That is a number beyond meaning for feedback to humans, like arguing for a 3000dpi screen vs a 6000dpi screen, they're both far beyond human levels of perception. From my experience of trying to eek out every variation in pressure with a wacom, 32 levels is enough. I'm not able to create 64 levels of varing pressure strokes, let alone 1024.
This is non touch version. Pen + Touch is $2800 which is a better comparison. That Cintiq is 2560x1440 compared to 4500x3000 in Surface Studio.
and here is what someone who actually used both thinks about it:
"Tycho asked me to compare it to my Cintiq, and I told him that drawing on the Cintiq now felt like drawing on a piece of dirty plexiglass hovering over a CRT monitor from 1997"