Hi. I'm on three PG348Q in Landscape Mode and on Quad Titan X.
My Temps on just staring at desktop alone @ 10320x1440 in surround and on idle is already at 41°C at minimums. The only time I recorded Temps via Aida64 is on FF XIV Heavens Ward with bezel corrected resolution, High Settings and for 30 minutes game play was 71°C at Maximum.
My GPU cooling: EK Waterblocks, 2 DDC Pumps running on Max Speed, 480mm Rads, push/pull fans.
I'm still new to Multi-Mon gaming and have been tinkering lately to get myself familiar.
Here is the preview of my monitor running WoT