I have a Gigabyte H97M-D3H (HDMI max. resolution of 4096x2160@24Hz or 2560x1600@60Hz) with an Intel Core i5 4570 processor, connected to an Asus PB278Q monitor (DP,HDMI and DVI Dual link: max. resolution supported 2560x1440@60Hz)
My motherboard doesn't have DP, but has HDMI and, as I said, it is...