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The only real difference is that opening in "OpenGL" GE is using the memory that is dedicated on your graphics card, not your system resources. If you have a graphics card installed in your computer that is capable of handling the memory requirements of the GE program, you open with "OpenGL".

If you computers graphic card has to use your systems memory (RAM) then you would open using DirectX. This is Microsoft's way of letting you enjoy the 3D effects of many programs. When you first install and run GE for the first time, it should tell you which mode to open in and then set it as your default.

If you are still unsure, you can always try to open in both modes to see which gives you the better performance...

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11y ago
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13y ago

It depends on the particular computer and video card.

A particular Windows system might require DirectX, OpenGL, or might run best in safe mode. When you start Google Earth, you can select the rendering of 3D imagery best suited to your system hardware. if you see problems with one try the other.

If you are using Windows, Google Earth tries to determine which setting is most suitable for you graphics card and automatically suggests that you switch.

On Linux and the Mac, Google Earth only supports OpenGL.

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11y ago

It depends on the particular computer and video card.

When you start Google Earth, you can select the rendering of 3D imagery best suited to your system hardware. If you are using Windows, Google Earth tries to determine which setting is most suitable for you graphics card and automatically suggests that you switch.

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Q: Which is the best for Google Earth in OpenGL or DirectX mode?
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