The gaming X doesnt seem to be suffering from thermal throttling cause it won’t even get enough power to get there . Also theres a butt load of thermal pads between the board and backplate .
I got the msi afternurner and even with maxing out the core voltage the card refuses to go above 88mhs . Soon as the memory goes over +400 the base clock drops to 940 and so does the hashing .
Right now when mining card is never above 45C
It's not the GPU core, it's the memory that's the issue, it's getting too hot.
Need to feed the card cold air to cool those memory chips down, not the GPU core.
The temp your seeing is for the GPU core at 45C, the memory will be in the 75C + range which is too hot, the card will throttle down based on this.