Lightroom can use the Graphics Processing Unit (GPU) to speed up interactive image editing. This provides real-time or near-time updates to the image while making adjustments in the Develop module using sliders. The GPU is particularly helpful when using high-resolution screens, such as 4K and 5K displays.
Adobe Photoshop Lightroom 4 Graphics Card: Lightroom does notcurrently utilize the GPU for performance improvements. It is outlined in the Lightroom documentation here. Lightroom requires a video card that can run the monitor at its native resolution.
The most usefull answer is: third-party GPU overclocking utilities and haxies aren’t supported. Multiple graphics cards with conflicting drivers can cause problems with GPU-accelerated or enabled features in Lightroom. For best results, connect two (or more) monitors into one graphics card. Disable Automatic graphic switching on the Energy Saver tab in the System Preferences.
How does Lightroom Classic use the graphics processor?
When configured (Preferences > Performance), Lightroom Classic can use a compatible graphics processor (also called a graphics card, video card, or GPU) to speed up tasks of displaying and adjusting images in the Develop module, the Library module’s Grid view, Loupe view, and Filmstrip.
To determine your graphics card make and model, launch Lightroom and choose Help > System Info to view the information for your graphics processor. Does Lightroom take advantage of more than one graphics processor or graphics card? Lightroom currently doesn’t take advantage of more than one graphics processor.
Is video editing a no-go in Lightroom?
This is probably the point where most people assume video editing is a no-go in Lightroom and just give up. With your video selected, once you open the Develop module you’re greeted with this somewhat annoying message: Video is not supported in Develop. That tells you everything you need to know, right?
Yes, it is possible to edit videos in Lightroom. Here’s how to do it. Locate the Video You Want to Edit Videos show up in the Library module, right alongside your photos.
Learn about the video file formats that you can import and edit in Lightroom Classic and Lightroom. Some video file formats—such as MOV and AVI denote container file formats rather than denoting specific video data formats.
You may be thinking “Can I open a Lightroom Classic Video in Photoshop?”
You cannot open videos directly from Lightroom Classic into Photoshop. If you edit the metadata of a video file in the Library module, the changes are stored in the Lightroom Classic catalog. The information is not available to other applications. You cannot see or edit the video camera’s capture time in Lightroom Classic.
Why can’t I edit my Video in Lightroom?
Make sure you stay in the Library Module. Lightroom does not allow you to edit video in the Develop Module, so if you click away from the Library module, you’ll get this message: “Video is not supported in Develop” Just as you would with a photo, you can edit the overall exposure, white balance, etc. of your video in the Library module.