Setup: i7 4.5GHz, AMD 295x2, Asus Z97 Deluxe MB, RAID2xSSD, 16GB, Thunderbolt 2 connection
Just got it, quite impressive! Very large display, never seen a panel like this. Did some adjustments, I like the "Game Mode" for gaming, it seems to just saturate the colors but it looks good. The brightness (100% default) is good for the games I tried but too bright for desktop, I put it to 50% and will adjust the games or leave them alone.
Playing games didn't give me exactly the wow factor I expected, probably because previously I have played with 3x 1900x1200 monitors which is less vertical but more horizontal. Too much horizontal actually, it's an enormous setup that is hard to drive and too much visual actually. But all other monitors are too small.
Especially for the gaming I do - MMO's, in particular MMORPGS, you need real estate. The many windows start stacking up and it's horribly annoying to have to move them around all the time. Plus having room to put a map up while traveling. I think this form factor and monitor is ideal.
4k is too many pixels, with anti-aliasing I don't need that many - I need some width and height. Two monitors in Xfire is unworkable because games put the main character (I use 3rd person) right in the center! Finally, driving multiple monitors is tough. I have 2x290x GPU's water cooled (via factory) and I want all the eye candy at about 60 fps. No, I demand it! Cursory examination shows my usual 62 fps in LOTRO and 50 fps in Elder Scrolls, not different from before.
Yes there is some backlight bleed, but it's
less than the Cinema monitors I have. I believe this is an engineering issue, I don't think there's much LG can do about it with the technology at hand. This is a BIG monitor they're trying to light after all.
So far, big win. Perfect gaming monitor, as fast, colorful and good as I could want. Oh yeah and I like the joystick
Edit: Downside - the stand. They should have given us a full featured one. Thunderbolt - and the USB ports appears to be working fine.
After further use I'm really falling in love with this form factor. Perfect size for gaming, not too big or too small. There's a reason the movie industry chose 21:9 - it's immersive. At this distance the outer edges go out your peripheral vision, giving the impression of a wide expanse. With the triple screen some games started to do perspective distortion, it was so wide angle. This really is all you need.
As reviewers have noted the lower corners are brighter than the upper corners and the backlight bleed comes from the lower. It's really not an issue in use.