AMD has finally revealed its two biggest launch dates of the year, with the long wait for Ryzen 4000 CPUs and Big Navi GPUs almost at an end. AMD will kick things off with its Zen 3 presentation on October 8 at 10:00 PT / 13:00 ET / 18:00 BST / 19:00 CEST and follow up with its Radeon graphics card keynote on October 28 at 10:00 PT / 13:00 ET / 17:00 GMT / 18:00 CET (yes, the clocks go back an hour in Europe).