Popular hardware monitoring tool HWInfo64 has just received a new update, version 6.42 that adds support for “GDDR6X Memory Junction Temperature.” This feature will allow you to check your VRAM temperature if you have a GDDR6X equipped Ampere card like the RTX 3080 or RTX 3090. This could be particularly useful if you own a Founders Edition model, as several months ago we reported on a discovery from Igor’s lab in which GDDR6X modules on the RTX 3080 Founders Edition model ran dangerously hot.

After some testing with the new HWInfo64 version 6.42, we’ve validated these same high VRAM temperatures that Igor discovered. Looping Metro Exodus at 4K Ultra settings for several minutes on an RTX 3080 Founders Edition allowed the GDDR6X modules to hit a peak temperature of 102C. The TJmax for GDDR6X is 95C.



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