When running benchmarks, the GPU hotspot hits 110c, while the GPU is at 72c. It continues with the side panel taken off and fan speeds set to 100%, which should hypothetically have lowered the temperatures. I have tested in 3dmark, Furmark, and MSI Kombustor. This issue also occurs while gaming. This is also a known issue with the 7900 XTX, and I am wondering what I can do to either get a replacement or a refund.
You would need to contact the manufacturer. So, contact AMD or Gigabyte or whoever made the card. This problem has almost been nailed down to a problem with the vapor chamber on reference cards. If you bought it directly from AMD I would contact AMD through the link in this site Customer Support | AMD that says contact support. It appears to be going through maintenance until some time this week.