I am currently working on an OpenGL based UI toolkit and recently purchased a 4K monitor and a EVGA GeForce GTX 750Ti to drive the display for testing purposes.

I am currently working on an OpenGL based UI toolkit and recently purchased a 4K monitor and a EVGA GeForce GTX 750Ti to drive the display for testing purposes. As you might expect, it appears taxing to push 4X the content over the bus or have the card render content at a high resolution. This may not be the effect seen here, but it is the first thing that came to mind. I am not sure how well system hardware has kept up with display technology.