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Assuming you aren't chasing 60fps constant
This isn't accurate. You can always choose the 1920 x1080 option (asusming that's your monitor resolution), and it will output on the central screen leaving the others blank. You may have to change the Aspect Ratio (in the game's video settings) from Auto to 16:9 or "Widescreen" to be able to select normal resolutions, but I have never played a game where they aren't there.Eyefinity - In game you can't switch back to outputting on a single screen by selecting the resolution (in my experience it just stretchs). If you want to run single screen you have to manually switch back from spanned mode.
i would like 60fps tbh. want a nice smooth experience. i dont run AA now so wont be too bothered if i have to turn it off.
Sadly you are looking at a Titan X as a minimum then.. (Even that won't be able to hold 60FPS+ constant in everything
Pixels:
3840x2160 - 8294400
3440x1440 - 6220800
5760x1080 - 4953600
2560x1440 - 3686400
1920x1080 - 2073600
I think you got the 3440x1440 and 5750x1080 pixel numbers wrong way around.
Anyway to run 3x1080 monitors in current games maxed out at 60fps with single card there really is only one choice GTX 1080.
Also thanks to ansel included in pascal gpus side monitors won't be stretched.
i would like 60fps tbh. want a nice smooth experience. i dont run AA now so wont be too bothered if i have to turn it off.