[Edited by BMedcom, 10/27/2015 8:18:08 PM]
I would try reducing your game resolution to 1440p on your current 4k monitor and see if the system is stable with that resolution before burning money on a monitor.
My rig: AMD FX 6350 Six core CPU @ 3.9 GHz
16 gig Corsair 1866 ram
GTX 980 4 gig
3 Crucial 200MX SSD's
2 Plextor Blu-Ray Drives
Korean 27" IPS monitor
I do all my gaming @ 2560x1440
So you should'nt have any problems doing 1440p.......
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