IgorsLAB published Simple pad mod for the GeForce RTX 3080 Founders Edition lowers the GDDR6X temperature by 8 degrees A quote from the article:

I had recently already measured it in the article GDDR6X at the limit? Over 100 degrees measured inside of the chip with the GeForce RTX 3080 FE! and noted, that in extreme cases temperatures of over 110 °C were reached during mining or with Furmark, which of course falls into the more questionable range.

  Simple pad mod for the GeForce RTX 3080 Founders Edition lowers the GDDR6X temperature by 8 degrees