Why is the memory frequency of the virtual machine so far worse than the real one?

Hi
In Parallels Desktop for Mac you can assign up to 8GB of RAM to your virtual machine. In Pro Edition you can assign up to 64GB of memory.
NOTE: The maximum amount of virtual RAM depends on the total amount of physical RAM directly: you cannot assign more RAM than your Mac has.
Please let us know of it's not that case and provide us with details of your issue/questions.