AMD Sienna Cichlid confirmed as Navi 21, Navy Flounder is Navi 22

Published: 25th Sep 2020, 07:34 GMT   Comments

AMD Navi 21 is Sienna Cichlid

The speculation is over, Sienna Cichlid is indeed Navi 21 and Navy Flounder is Navi 22. This is all confirmed by AMD through ROCm Developer Tools source code. Whether these codenames refer to the specific products (such as Radeon Pro), we don’t know yet. We do at least know for sure that these codenames are used internally by AMD open-source software developers in regard to Navi 2X series of GPUs.

AMD ROCm Developer Tools (gdb/doc/gdb.texinfo)

As explained by the developers themselves, those codenames have no meaning, they are generated from a random selection of word lists. We believe this is a technique to derail the interest of everyone looking for RDNA2 GPUs information. After all, it took nearly 3 months to finally see a single line of code connecting the codenames to GPUs.

The nature of open-source software allows everything to track the progress of next-generation Radeon graphics. Historically they were always added weeks ahead of launches, so whenever something happening in the code, we knew new GPUs were coming.

Just three days ago we reported on a third codename had appeared in AMD OpenGL driver (Mesa) code. AMD Dimgrey Cavefish is more than likely Navi 23, a third GPU in the GFX103X family, this, however, was not confirmed in the code (like Navi21 and Navi22), but rather deduced from available data.

AMD Graphics Chips
Graphics ArchitectureGPU CodenameAlternative NameArchitectureProduct
GFX900VEGA 10GCN 5.0RX VEGA / Radeon Pro
GFX902RAVENRaven Ridge / PicassoGCN 5.0Ryzen 2000/3000(G/GE)
GFX904VEGA 12GCN 5.0Vega Pro 20 (MAC)
GFX906VEGA 20GCN 5.0Radeon VII / Radeon Pro VII
GFX908ARCTURUSCDNA 1.0Instinct MI100 TBC
GFX909RAVEN2GCN 5.0TBC
GFX909RENOIRGCN 5.0Ryzen 4000(H/U/G)
GFX1010NAVI 10RDNA 1.0RX 5700/5600(M/XT)
GFX1011NAVI 12RDNA 1.0PRO 5600M (MAC)
GFX1012NAVI 14RDNA 1.0RX 5500 (M/XT)
GFX1030NAVI 21Sienna CichlidRDNA 2.0RX 6900 TBC
GFX1031NAVI 22Navy FlounderRDNA 2.0RX 6800/6700 TBC
GFX103XNAVI 23Dimgrey CavefishRDNA 2.0RX 6600/6500 TBC

Meanwhile, AMD’s Frank Azor (Chief Architect of Gaming Solutions & Marketing) posted an interesting response to a tweet claiming that AMD is probably going to do a paper launch of the Radeon RX 6000 series just as NVIDIA did with a ridiculously low stock of the GeForce RTX 30 series.

Do note that the tweet is about a launch, not the announcement that is happening on October 28th. For all, we know the launch of the Radeon RX 6000 series could easily happen in December, we simply do not know yet. So just remember, the announcement is not a product launch.

Source: Github via Coelacanth’s Dream




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