Would a simple displayport to HDMI adapter allow me to run my display at 60 hz or do I need and active adapter ? My display is capable of 60 hz at 4K, Mt Dell with a GTX 1070 has HDMI 2.0 and can do it, but my other machine equipped with dual R9 390xs in crossfire can not due to the HDMI being 1.4. For the record I am using a 50 inch 4k tv. Has 4 4k@60hz ports