In this case, if you need > 8 GB of RAM for your program, then you will have to use the Pro edition (which allows for vRAM allocation more than the Standard edition does - as stated
here). You may simply test it out for yourself by installing a
trial Parallels Desktop version and a non-activated Windows virtual machine, as explained below:
1.) Download a new Windows disk image file from
here and ensure that the download completes successfully.
2.) Begin
installing Windows, using the disk image file downloaded earlier.
3.) In the screen titled "
Name and Location", select '
Customize settings before installation' and click on '
Continue'.
4.) In the virtual machine configuration window that appears, navigate to
Hardware ->
CPU & Memory and allocate 2 processors (or just 1 if the total number of available processors is just 2) and 2 GB of memory for Windows [or just 1 GB if total Mac memory is only 2 GB (or) 4 GB if total Mac memory is 8 GB (or) half the available RAM value if total Mac memory is > 8 GB].
5.) Select '
Graphics' and allocate 1 GB of video memory and select '
Scaled' for '
Resolution'.
6.) Ensure that '
Vertical Synchronization' is enabled and '
DirectX 10' is selected for '
3D Acceleration' under 'Advanced Settings'.
7.) Close the window and proceed with the installation.
8.) Download and install your software within Windows.