GTX 970 for an immediate improvement at your stated monitor resolution.
GTX 980ti for a powerhouse that will eat anything you throw at it at 1440 resolution, and can just handle 4k.
There will be some breakthrough stuff appearing in graphics cards, monitors and VR this year, but I wouldn't expect availability until Q3. If you can wait that long, hold out, save your pennies, and do a mega upgrade when the goodies arrive. Otherwise dive in now with one of the cards mentioned above for an immediate improvement that will carry you through until the new stuff falls in price slightly.
GTX 980ti for a powerhouse that will eat anything you throw at it at 1440 resolution, and can just handle 4k.
There will be some breakthrough stuff appearing in graphics cards, monitors and VR this year, but I wouldn't expect availability until Q3. If you can wait that long, hold out, save your pennies, and do a mega upgrade when the goodies arrive. Otherwise dive in now with one of the cards mentioned above for an immediate improvement that will carry you through until the new stuff falls in price slightly.