Hi Everyone I have rMBP mid 2015 with Radeon x370m. Soon I will change my old monitors from 2x 1080p to one ultrawide but I don't know whitch one. For now I'm thinking about LG 38UC99-W (3840x1600) but LG announced ultrawide 5k display (5120x2160). From article I know that my Mac can support 5k display's but I need some proof, some video or article about it. Now I do not know if I should wait for new or buy older display. I do not change monitors often, the last time was 7-8 years ago.