[Question] CPU or GPU intensive?

[Mirage]

FFXIV runs on X64 by utilizing WoWx64 because of its single thread usage. That has nothing to do with the amount of cores it can use.

Wow64 lets 32-bit programs run natively in 64-bit CPU modes. This doesn't really impact the number of threads the game can use, or have any significant impact on how much of the CPU it can utilize.

I'm not exactly sure what you're trying to say. Could you elaborate?