Originally Posted by hatlesschimp
It's the fact the card can't do it such a high pixel clock through any individual port even though dp1.2 is CAPABLE.
No point going on about this till we can find some proof either way. I'm fairly certain what I'm saying is true but have to prove it.
The GTX Titan supports 4k resolution, and has a maximum single output of 4096x2160.
I don't know how to do the math myself, but if the card supports DP 1.2, then it must be capable of meeting the demands of the interface. Since the demands of DP1.2 specify a bandwidth of 17 and change Gb/s, and 4k resolutions falls below this, I think it is safe to assume it will work fine.
Not to mention, as far as I know, the Titan is the only card (possibly the 780 now as well) that has native support for 4k. Now, what I do not know is whether or not they can get away with putting a displayport on a card that is not capable of meeting the specifications of the interface. I would assume that since the card is capable of saturating a DVI connection, as well as HDMI, that it can also do so with displayport.
I do not however know enough details to make the calculation to find the required pixel clock for that resolution, but I believe 3840x2160 @ 60hz requires a bandwidth of just under 15 Gbps correct?
I could be wrong, I might be wrong on my maths.... But I don't know how that translates to the pixel clock.
Also somewhere else (another post) I think I may have used the wrong horizontal resolution, but I don't recall where it was, but I remember typing 3860 for some reason... ignore that.Edited by Masta Squidge - 6/10/13 at 2:53pm