what is the display tab about then? Supposedly with 3d acceleration turned on you can dictate the "graphics memory"?
I'm assuming VM player does not give the same amount of detailed customization as actual workstation.
But even when I had that I do not recall being able to set limitations on the cpu, ram, gpu in the way you are describing.
I have a "Display" tab and in it at the bottom is a selector, "Graphics Memory, The maximum amount of guest memory that can be used for graphics memory", starts at 32mb and goes all the way to 2gb for me