AMD adds 17 new PCI IDs of Navi 21, 22 and 23 GPUs to Linux kernel, could be the rumored 6nm refresh

Published: Aug 27th 2021, 11:01 GMT   Comments

Please note that this post is tagged as a rumor.

17 new PCI IDs sighted, might confirm upcoming 6nm refresh of Naxi 2X GPUs

AMD is adding an unusual number of PCI IDs of its existing GPUs to the Linux kernel.

Phoronix reports that AMD might have just added IDs for the rumored 6nm refresh of Navi 2X (RDNA2) GPUs to the Linux kernel. While the IDs do not explicitly confirm it is a refresh, their number and the fact that they are added to existing GPU families might suggest these are new GPUs.

Greymon55 recently shared that AMD is planning to launch ‘only’ three Navi 3X GPUs, while the rest of the stack would be a refresh of existing GPUs, except using a more advanced 6nm fabrication node.

It was believed that AMD might be refreshing its Navi 22, 23, and 24 GPUs. The latter still has not been released and at this point, it is unclear when should we expect it to launch. Just recently AMD added its Navi 23 GPU to the existing family of products. It is now available for both Radeon consumer and Radeon workstation SKU and their mobile variants.

The patch features not only the Navi 22 and 23 but also Sienna Cichlid which is Navi 21. This GPU was not expected to be refreshed because it is rumored to feature just as many cores as Navi 33 (5120 SPs). This would be an unfortunate decision from a marketing and product segmentation perspective.

New Navi 2X GPU IDs, Source: Freedesktop

The list features the following new GPU IDs:

  • Sienna Cichlid (Navi 21): 0x73A5, 0x73A8, 0x73A9, 0x73AC, 0x73AD (5 new, with 7 already existing)
  • Navy Flounder (Navi 22): 0x73DA, 0x73DB, 0x73DC, 0x73DD, 0x73DE (5 new, with 4 already existing)
  • Dimgrey Cavefish (Navi 23): 0x73E8, 0x73E9, 0x73EA, 0x73EB, 0x73EC, 0x73ED, 0x73EF (7 new, with four already existing)

AMD might just as well be adding more variants for board partners or new revisions of existing GPUs, but that usually is not the case when we see such a large number of new IDs. However, at this moment we won’t know for sure what these represent until the first product with such IDs gets sighted in a leak.

Radeon 5000
Radeon 6000
Radeon 7000
Radeon 8000
Node7nm7nm5nm / 6nm3nm / 5nm
Navi 21
5120 SPs
Navi 31
15360 SPs
Navi 41
? SPs
Navi 10
2304 SPs
Navi 22
2560 SPs
Navi 32
10240 SPs
Navi 42
? SPs
Navi 14
1536 SPs
Navi 23
2048 SPs
Navi 33
4096 SPs
Navi 43
? SPs
Navi 24
1024 SPs
Navi 22 6nm
2560 SPs
Navi 44
? SPs
Navi 23 6nm
2048 SPs
Based on speculation

Source: Freedesktop via Phoronix

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