Windows 10: GTX 780, how do I get 144hz out of HDMI or DP?

DisplayPort - Wikipedia, the free encyclopedia

Theres even 1.3 and 1.4 out now.

 

I've heard of the Tesla cards, although I have no personal experience with them. I would have been more interested in them for desktop supercomputing rather than graphics rendering.

The Wikipedia link (post 14) gives the maximum bitrate for DP 1.2 as 17.28 Gbps. I'm running a UHD (3840 X 2160) display at 60 Hz. My graphics card supports a 10 bit color depth (per RGB channel). That works out to be about 14.56 Gbps. Naïvely, a 1920 X 1080 display using 24 bit color ought to be good for 347 Hz at the DP 1.2 bandwidth limit.

I wonder whether the color differences between HDMI and DVI are due to the graphics card or the monitor. I'd guess the latter, but I also wonder whether graphics professionals normally use HDMI interfaces. (Not my bag, as they used to say 40+ years ago.)

 

Normally we use DVI, but that could be just a force of habit or tradition, for lack of a better way of explaining it. We DO normally avoid HDMI in my experience because of the exact problems im having which is, it tends to exaggerate black points and white points, giving the appearance of more contrast. Thats great on a TV but it does not give an accurate example of what the actual color space is. This can of course be tweaked and its what im doing now, but the general consensus is, tweaking the color can degrade it. Not noticeably to the human eye, for the most part, but "for the most part" usually isnt good enough. Additionally, DVI-D and I tend to handle gradients better, in my experience... I could be just imagining it, but if im correct than it would explain a lot. HDMI cables, I see heavy posterizing like its running on 8bit color space while DVI-D is far smoother. Then there is the whole issue that DVI-D and I can actually get into the 200+ hz range while HDMI clearly struggles with this. High frequencies allow the monitor to play back higher frame rates. It sounds like a gimmick but when you watch the same clip a few thousand times, the frame rate quality is night and day, and its important. Not to say we might not move towards HDMI or DP in the future. This is just what I see, and use myself, for the most part.