As my corporate laptop is getting near the end of its lifecycle I'm considering replacing it with a Surface Pro 4. I have many roles in my company from on-site sales and external presentations to management and development, and it seems to be the ideal combination device to fill all roles. Due to all the roles I need real estate on my screens though, I would therefore like to maintain a similar setup as I'm using now. I have a full HD 17" laptop docked in the middle at work, with 2 24" 1920x1200 monitors on both sides.
Ideally I would replace this with the Surface Pro flat in the middle, and 3 QHD (3840x2160) monitors in row behind. Alternatively I could use only 2 QHD monitors, one in the middle, and the SP4 itself in upright position next to it.
Is the GPU in the SP4 capable of running either of these setups, so 2 or 3 external QHD screens, optionally with the SP4 itself as 3rd or 4th? Would I need one of the higher CPUs to be able to run them?
(related question here indicates the SP3 only supports a single external 4K screen, so I'm skeptical)