Why are Adobe Lightroom and Photoshop starting to use the GPU more than in the past?

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philmar Senior Member • Posts: 2,698
Why are Adobe Lightroom and Photoshop starting to use the GPU more than in the past?
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Newer features in Adobe Lightroom and Photoshop are starting to use the GPU more than in the past. I know video games starting this trend and for 3D games I understand
why it is better to use the video processor. But my understanding is that LR and PS are largely coded to use single core of the CPU. Why doesn't Adobe try to harness
the unused potential of the CPU instead of being coded more and more to use the GPU? In the past 2D photo manipulation relied mainly on a fast powerful CPU
and one could even forgo a GPU. Now in addition to a powerful CPU I feel one also needs another expensive PC component (a decent GPU). Why doesn't Adobe
try to code so as to tap the CPU's extra cores instead of forcing users to buy expensive GPUs? Is there something the GPU can do better than the CPU? Is it the extra RAM in the GPU?

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Phil M. - Toronto, Canada
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