The EP121 only had the older HD3000 graphics which I wouldn’t really expect to be valuable for any serious 3D use…I’m also not sure how good the compatibility is across the board with most 3D tools (I have an I5 desktop with a video out I could probably rip the GPU out one day and do some tests)
The new Sony is still a capacitive screen, so it’s larger but you’re still going to be limited to those mushy rubber styluses compared to a traditional Wacom Pen.