I have a 4,1 Flashed to 5,1 and am running a Radeon RX 560 with three monitors. They are lower res monitors only 1680 x 1050 but all three work just fine.cMP 5,1
10.14.2 (will update to 3 soon)
Is it possible to run 3 displays?
Currently I use the following:
Or get a WX series card that is actually designed to handle multiple monitors, rather than guessing with a gaming card.There's probably a logical limit to how many displays macOS can support, but in practice you're just limited by the outputs of your graphics card(s). Lots of people run 6 monitors on two double-height graphics cards, or 9 monitors on three single-height graphics cards.
You can even split a single graphics card output to two or three monitors using a box like the Matrox TripleHead2Go.
Sure... if you have a need for a workstation-class graphics card and you have the cash to spend. But I'm not sure that using a "gaming" card with multiple monitors is "guessing." All the gaming cards I've ever used have supported multiple monitors.Or get a WX series card that is actually designed to handle multiple monitors, rather than guessing with a gaming card.
WX4100 lists maximum digital resolution as 5120x2880. Is that per port or total across the ports?The OP wants to run 3 monitors - getting a card that is designed to run 4 makes it easier. Running a cMP in 2019 means guessing which PC cards will work (See: all of the threads arguing of which video card will run with what)
AFA cost - get a WX4100 they run for about $160 (Have a 10 year warranty and draw a whole lot less power.) That is the cost of better binning.