AMD is preparing to launch the flagship Radeon RX 5800 :
AMD Radeon RX 5700 and 5700 XT review - Radeon RX 5700 and 5700 XT
Sapphire trademarks tons of Radeon RX 5000 GPUs, including RX 5950 XT, RX 5800, and more
Rumour: AMD Radeon RX 5800 Series with Navi 12 GPU could compete with GeForce RTX 2080
AMD RX 5000: The RX 5950 XT, RX 5950 and 19 other Navi graphics are listed in the ECC - HardwarEsfera
Flagship AMD Radeon RX 5950 and Radeon RX 5800 Series graphics cards appear in EEC listing
Navi 12, 14, 21, and Lite variants of AMD's latest GPU range revealed in Linux driver code; RX 5800 could take on the GeForce RTX 2080 - NotebookCheck.net News