Yes, there are two issues:
1.Lower quality VRM and lower efficiency cooling solution on the Gaming X compared to Suprim (resulting in higher overall AND Vram temp)
2.Lower BIOS limit for throttling, as I have complained initially and it was proven by the users who used the Suprim Bios on the Gaming X.

MSI does not wat to give a different tuned BIOS for the Gaming X.
So the conclusion remains, avoid this implementation if possible.