minimum requirements for 4K monitors, OpenSUSE

I recently purchased an Asus PB287 4K monitor, and encountered some problems. I firstly tried it on a PC running OpenSuse 12.1 with an i5-3570 processor and ATI Radeon HD 7500 graphics via DisplayPort, and while 4K resolution was correctly established, performance was slow (e.g. moving the mouse does not lead to a smooth path on the monitor). I tried it on a newer PC that had MSI Geforce GTX 760 Twin Frozr, DisplayPort, OpenSUSE 13.1, and there was a significant improvement. But still, it was not quite the quality I wanted, e.g. dragging applications around the screen on KDE wasn’t as smooth as I expected it to be based on my experience with KDE on 1680x1050 resolution monitors.

I was just wondering, is there a way to solve this in OpenSUSE, or does this perhaps mean that I need a better graphics card?

I’d like to add two things:

Correction: my newer PC actually has an “NVIDIA Corporation GK107 [GeForce GT 630 OEM] (rev a1)” graphics card (and not the MSI Geforce GTX 760 I mentioned in my previous post)

Additional information: I just noticed that while 4K is supported by the GeForce GT 630 OEM, it only does so with a 30 Hz refresh frequency, leading to the rough UI experience. This is true for both OpenSUSE and Windows 8 (with the latest driver installed). Does anyone have recommendations for a graphics card that supports 4K resolution @60 Hz on OpenSuSE 13.1?

I have a 630 but it is considered the top card in the mid range. I assume you have deep pockets if you are playing with 4K so go for the top card

good place to see results is here

GeForce GTX 780 Ti

looks to be top dog

First make sure it is Displayport 1.2 (otherwise on 30Hz?).

Some knowledge/idea can you find here: It’s about 3D and games but…