I am just wondering if the GTX 980 Ti is enough to run 3 x LG 29UM65 29" all games at ultra setting?
Unfortunately no. The combined resolution of those 3 monitors is exactly the same as 4k and you need gtx 980 ti sli to play games on 4k comfortably. Even then, it's not always possible to run everything at ultra details and maintain solid 60 fps.
I am just wondering if the GTX 980 Ti is enough to run 3 x LG 29UM65 29" all games at ultra setting?
Unfortunately no. The combined resolution of those 3 monitors is exactly the same as 4k and you need gtx 980 ti sli to play games on 4k comfortably. Even then, it's not always possible to run everything at ultra details and maintain solid 60 fps.
No. You are trying to drive 3x 2560x1080 so effectively 8.2 million pixels. 4k resolution is about 8.8 million pixels. Given that the difference is only about 6% that is not a big enough difference to suddenly make the 980Ti playable at ultra detail.