Historically speaking, only some GPUs from the same generation shared the GFX level. The most recent being: Fiji, Polaris10, and Polaris 11 (GFX803). Both Vega and Navi have IDs for each GPUs. Since we already know IDs for Navi 22 (1032) and Navi 23 (1033), Navy Flounder could either be a variant of Sienna Cichlid or a completely different GPU.
AMD Navy Flounder and Sienna Cichlid share GFX1030 id
Posted on Friday, Jul 31 2020 @ 13:18 CEST by Thomas De Maesschalck