Linux - nVidia - Meta Modes
OS: Arch Linux, kernel 4.6 64 bit
NVIDIA: Metamodes
First check with the command: xrandr
xrandr --output DP-1 --mode 2560x1080 --rate 160.00
xrandr --output DP-1 --mode 4096x2160 --rate 120.00
xrandr --output DP-1 --mode 7680×4320 --rate 100.00
or
nvidia-settings --assign=CurrentMetaMode="2560x1080_160"
nvidia-settings --assign=CurrentMetaMode="4096x2160_120"
nvidia-settings --assign=CurrentMetaMode="7680×4320_100"
or if you have more money for better monitor try:
nvidia-settings --assign=CurrentMetaMode="7680×4320_240"