Option

Description

Memory

If you have a virtual machine with Windows 8 or later, Parallels Desktop uses system memory for graphics. To increase the amount of graphics memory allocated to your virtual machine, increase the amount of system memory in the CPU & Memory pane.

If you have a virtual machine with Windows 7 or earlier, Linux or macOS operating system, you can set the amount of video memory that will be available to the virtual machine using the Memory menu.

Resolution

If you're working with Windows 7 or later on a Mac with a Retina display, you can choose how Windows is displayed on the screen:

• Best for Retina display. Windows resolution matches that of the Retina display and the DPI setting increases. Windows interface elements and text are clear, sharp, and at full size. This option is supported by Windows 7 and later.
• Scaled. Windows resolution and DPI setting don't change. Instead, Windows is scaled to full size. As a result, Windows interface elements and text are not sharp. This option is useful for Windows applications that don't support high-DPI settings and appear small onscreen.
• Best for external displays. Use this option if you're working with Windows on multiple displays one of which is non-Retina. The option is supported by Windows 8 and later.

For Windows XP:

If you're working with Windows XP on a Mac with a Retina display, Windows becomes scaled but its resolution doesn't change. As a result, Windows interface elements and text are not sharp.

However, you can enable full (2880x1800) Retina resolution for Windows by selecting Enable Retina resolution. At such a high resolution, Windows interface elements and text become sharp but small.

3D acceleration

This menu is available for Linux virtual machines only, and the 3D acceleration option is enabled by default. If you are experiencing issues with GUI in Linux, you may start the debugging process by selecting Off from the 3D acceleration menu.

For Linux guest operating systems, Parallels Desktop supports OpenGL 4.1 (Compatibility Profile).

In Windows virtual machines, this menu is not available because 3D acceleration is considered stable and is permanently enabled. For Windows, Parallels Desktop supports OpenGL 4.1 (Compatibility Profile) and DirectX 11.1.

As for macOS, virtual machines with macOS 12 Monterey and later running on Mac computers with macOS 12 Monterey and later support Metal graphics. The only condition is that such a virtual machine must have Parallels Tools installed.

If any of your Windows or Linux apps claims that it requires a higher version of DirectX or OpenGL, please let us know about this application on the Parallels forum. To access the forum, either click Help > Suggest a Feature or use the following direct links:

• for DirectX - https://forum.parallels.com/threads/directx-12-support-add-app-titles-in-comments.343895/
• for OpenGL - https://forum.parallels.com/threads/opengl-3-support-list-of-app-titles.340621/
• for Metal - https://forum.parallels.com/threads/metal-graphics-support-for-macos-big-sur-virtual-machines.351524/

Always use high-performance graphics

(not available on Mac computers with the Apple M1 chip)

This option is visible only if your Mac supports graphics switching. Select this option for better performance or deselect for better battery life.