Graphics Cheapest 4x 4K display NON-GAMING GPU?

Hey, so I run a cheap RX550 Powercolor 4gb card currently and It's OK for 2x 4K displays and 1x 1440p for Windows productivity and some video editing and it's perfectly fine for my needs (in a non-gaming capacity).

But next year I will be adding two monitors above my current large 4k displays and they will likely be in 4k.

My two main displays are 50" TV's in 3840x2160p, and these do not have DP inputs although one is being run on a DP 1.4 to HDMI cable @ 60hz. Also, I doubt I will need above 60hz in Windows but maybe one of the displays will be 120hz in the future.

So I need a card that has only HDMI and DP (say 3x HDMI and 1x DP) that will enable all 4 displays in at least 4k @ 60hz.

What would be the most cost effective option considering I do NOT game on my computer (other than extremely old titles now and again)?

My Ryzen9 rig is below and it has a 850w PSU that I bought in the event that I would upgrade the GPU next year.

I'm thinking GTX 1650/60 or RTX 2060?

In the future, I will likely upgrade to a very large 8k display, but I will in that event upgrade the GPU.

 

Go to pcpartpicker and just filter with 3 HDMI and 1 DisplayPort or whichever combo you prefer, then sort by price. Then lookup the card and see how many pixels it can push out simultaneously.

 

You can get displaylink usb3 cables that will support 2 4k60 screens over HDMI for less than £80, you wouldn't game on them but fine for most office work might be more cost effective.

Small Office / Home Users | Synaptics

Might not work with protected content so depending on what you ae doing that could be a blocker.

 

I have a Quadro P1000 in my workstation driving 4 X 4k @ 60Hz, cost me £130 from a refurb firm with a 2-year warranty. There may be cheaper but they will likely only do 30Hz.