We can officially call everyone who bought the 7900 series beta testers. They are also getting screwed royally by AMD, this is unacceptable.
Sources.
www.techradar.com
www.notebookcheck.net
wccftech.com
AMD's flagship Navi 31 GPUs on the A0 stepping appears to have some hardware issues that are affecting performance. This is believed to be the cause for Navi 31's delay by 1 year, resulting in unfinished silicon and a shader prefetch problem. Power issues are exhibited in different programs where the GPU clock varies from as low as 2.2GHz to as high as 2.9GHz. Early RDNA 3 will appear to have a non-working shader prefetch problem, resulting in software patches that hope to correct this until newer revised RDNA 3 silicon can be released next year.
Sources.

AMD accused of treating consumers as 'guinea pigs' by shipping unfinished RX 7900 GPUs
A possible black mark against an otherwise awesome graphics card

AMD's flagship RX 7900 XTX GPUs discovered to integrate A0 silicon revision affected by serious hardware issues
The problematic A0 silicon revision was apparently the reason why AMD delayed the launch of the flagship RDNA 3 GPUs by almost a year. Despite this, AMD still launched the RX 7900 cards with this stepping that is exhibiting high GPU clock variability, power draw issues and disabled shader...


Rumors Allege AMD Shipped Unfinished RDNA 3 Navi 31 A0 GPU Silicon In Radeon RX 7900 Series
AMD Radeon RX 7900 series based on the RDNA 3 architecture have reportedly been shipped with an early & buggy A0 Navi 31 GPU silicon.


AMD's flagship Navi 31 GPUs on the A0 stepping appears to have some hardware issues that are affecting performance. This is believed to be the cause for Navi 31's delay by 1 year, resulting in unfinished silicon and a shader prefetch problem. Power issues are exhibited in different programs where the GPU clock varies from as low as 2.2GHz to as high as 2.9GHz. Early RDNA 3 will appear to have a non-working shader prefetch problem, resulting in software patches that hope to correct this until newer revised RDNA 3 silicon can be released next year.
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