Hello,
I have an LG Ultra-wide 25UM55-P monitor and I love it. My 660Ti runs it just fine. Note: you will have to use DisplayPort to get the monitor running at its native resolution (2560x1080) and at 60 hertz. Ultra-wide aspect ration is more immersive in my opinion if you cannot either afford or fit 2+ separate monitors. You can also get some work done with this monitor as I can have three windows open side by side. The viewing angles are great and the "joystick" navigation of the menus is pretty intuitive.
Thanks,
Christian