Sharp has just made me drool all over my keyboard with the tease of its 27-inch 8K monitor with a 120Hz refresh rate and HDR-capable. The 8K display was teased at the IGZO booth of CEATEC Japan 2016.
The mammoth 8K resolution slams your graphics card with a huge 7680x4320 native res, while the even bigger 120Hz refresh rate will have your GPU under more pressure than ever before. 120Hz is a high refresh rate for lower resolution panels like 1920x1080 and 2560x1440, but 8K at 120Hz would require far more GPU horsepower than triple-monitor 4K 60Hz setups at resolutions like 11,520x2160 (which I personally use as the highest GPU load thanks to the insane native resolution). Throwing HDR onto the table makes the monitor look better, and require even more GPU power.
But rendering 120FPS minimum at 8K is absolutely impossible right now, no matter the GPU hardware - I would dare say that even the next-gen offerings in the NVIDIA GeForce GTX 2080 Ti , or the future Volta-based graphics cards (or even the crazy Volta GPUs with 48GB of HBM2 or GDDR6 ) - nor AMD's next GPU architecture in Vega , or even their next Navi GPU will handle 8K 120FPS in games on a single card.