TV's tend to have horrible input lag. Also, their ports being HDMI (and other TV standards) only input 4K up to 60fps thus rendering their 120hz refresh rate a pointless feature for computer use. Now 120hz TV's can usually create extra frames to simulate 120fps (Sony brands that as Motionflow)...
As shown in my video, you may indeed have multiple connections from the same PC, get sent to the 43UD79-B over multiple cables, and then match them up into one mega image. Though slightly odd behavior pops up, as seen at 2:06 in my video, since the monitor thinks it's multiple computers sending...
While it's true most "reviewers" only toy with a product for a couple hours (while reading a press release almost verbatim) before shipping it back, this is actually my main desktop monitor now. I use it for my Mac, Windows gaming rig, and consoles. As a geek I've used it quite heavily these...
The VX4380-4K has a response time of 12ms according to their own website. While I haven't used that monitor at all, that would be horrible for gaming if that stat is accurate. Would probably create a good bit of ghosting.
http://www.viewsonic.com/us/vx4380-4k.html
The LG 43UD79-B claims to have...
You can have your PC running at 1080p and your blurry player running at 1080p, in side-by-side mode.
If you really want your PC showing you a full 4K, you could leave it taking up the whole screen at 4K, then have your blurry player at 1080p using picture-in-picture mode.
See my "Epic Review"...
I got the LG 43UD79-B a few months ago. Its a great monitor! I just posted a rather lengthy video on YouTube about it, which includes monitor unboxing and setup, gaming benchmarks with a GeForce GTX 1080 Ti, monitor feature guide focusing on multiple devices on-screen at once, and final...