Lightroom CC: No GPU acceleration

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  • Updated 4 months ago
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I got an older i7-2600 CPU, 16GB RAM and newer GTX 1070 graphic card. BUT GPU acceleration does not seem to work since Lightroom CC was released. I have latest drivers on Windows 10, I have GPU acceleration option set in Lightroom CC, I have set GPU to be the only one to be used in nvidia control panel and, just fore sure, disabled integrated Intel graphic accelerator in Windows device manager. Using some tools like local adjustments or (and mainly) heal/clone brushes are extreme slow. In Windows Task manager, GPU load for Lightroom is always 0% whatever I do. Indication of GPU use never showed up by Lightroom CC process. Thus I think there might be an issue with GPU acceleration.
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dwbmb

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Posted 5 months ago

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Rikk Flohr, Official Rep

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dwbmb,

Can you go to Help>System Info... and copy and past your Lightroom CC version number here?
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dwbmb

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Here is everything:

Lightroom CC version: 1.4 [ 20180608-0705-e1ba7c8 ] (Jun  9 2018)
Operating system: Windows 10
OS Version: 10.0 [17134]
Application architecture: x64
System architecture: x64
Logical processor count: 8
Processor speed: 3,4 GHz
Built-in memory: 16265,0 MB
Real memory available to Lightroom CC: 16265,0 MB
Real memory used by Lightroom CC: 1636,7 MB (10,0%)
Virtual memory used by Lightroom CC: 2689,7 MB
Memory cache size: 3698,5 MB
Internal Camera Raw revision: 976
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX
Camera Raw virtual memory: 498MB / 8132MB (6%)
Camera Raw real memory: 499MB / 16265MB (3%)
System DPI setting: 144 DPI (high DPI mode)
Desktop composition enabled: Yes
Displays: 1) 3840x2160
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 
DirectX: NVIDIA GeForce GTX 1070 (24.21.13.9811)
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Rikk Flohr, Official Rep

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When you attempt to use one of those slow brushes you mentioned earlier. Is there any performance difference with GPU enabled over disabled?
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dwbmb

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I was thinking about the same but honestly I could not see any difference. It is highly subjective and hard to "meter" for me, but if there should be huge difference, then it's not.