1440 - 144Hz 1080 - 60Hz That behaves for me. The 1080 panel is capable of higher but the memory clocks max out if I go above 60. For my situation it works as I game on the 1440 screen and watch videos on the 1080 screen. I don't have superwide screens but might be worth looking at similar in your case? I also have a 4K 120Hz TV connected to the card but keep that turned off unless I want to watch a film or something. No matter what I do, as soon as a 3rd screen is introduced the clocks max out.