Of possible interest to those running more than one graphics card

Posted By
Jan 10, 2009
This had totally escaped me until today. Though it doesn’t affect my setup, it might be of interest to others who may have missed it too.

Excerpt from <http://www.adobe.com/go/kb404898>

Q. Does Photoshop take advantage of dual-GPU display cards?
A. Not at this time.

Q. Why can’t Photoshop take advantage of more than one display card?
A. When you move an image window between two monitors that are each on a separate display card, the GPU attached to the second monitor does not have access to the data necessary to accelerate drawing. The SLI and Crossfire technologies that use more than one GPU to speed up full-screen games will not work with Photoshop, because their use is limited by design to accelerate only full-screen games.

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