Looking for a screen with multi-input split

[Hereimiz]

I am looking for a screen that supports split screen from multiple inputs.

I really like the way the 43UD79-B that Linus reviewed handles this, but I'm not sure I want to game in 4k, so I was wondering if there are high refresh rate monitors that have similar features out there, maybe something in 1440?

I do have a EVGA 1080ti FTW3 hybrid and i7 6850k, so technically i can push (most of) the frames for 4k, but with the recent vid on gaming higher refresh over 4k, especially given the pixel density at desk distance with the 43" monitor, I'm not thinking the 43UD79-B will make for a great 4k gaming experience.

 

The reason I like the screen split is because I tinker with raspberry pi and have a work laptop i'd like to be able to use in conjunction with Synergy.

[Hereimiz]

I am also a fan of having an IPS panel, and I know that high refresh == $$$ for 
IPS, but I'm ok with that.