Note: This subset of parameters is not supported for macOS virtual machines.
--videosize <num>
Sets the amount of memory for the virtual machine graphic card (in megabytes).
--3d-accelerate <off | highest | dx9>
Sets 3d acceleration video mode.
--vertical-sync <on | off>
Enables or disables vertical synchronization.
--high-resolution <on | off>
Enables or disables high resolution video mode for retina display.