21:9 2560x1080 60hz 3ms or 16:9 1920x1080 144hz 1ms?

No it doesn't. What GPU do you have - will it support 144hz? What frame rates are you expecting and at what quality level? Are you willing to put up with black bars on each side of the 21:9 monitor when a game doesn't support the 21:9 aspect ratio?