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Slow Denoise

New Here ,
Apr 28, 2024 Apr 28, 2024

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I have 32gb RAM & 1 TB memory...and a 4800HQ CPU in my laptop yet Denoise is taking 20mins+ per photo is there anything I can do to improve this??

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Community Expert ,
Apr 28, 2024 Apr 28, 2024

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@Jalex67 

Are you using LR, LRC, or ACR? Let us know and we'll move your post from Using the Community (for questions about the forums).

 

Jane

 

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New Here ,
Apr 28, 2024 Apr 28, 2024

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I'm using LR and sometimes LRC...mainly LR

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Community Expert ,
Apr 28, 2024 Apr 28, 2024

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Thank you @Jalex67 , I've moved your post to the Lightroom forum for you.

 

Jane

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Community Expert ,
Apr 28, 2024 Apr 28, 2024

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Denoise performance depends on the GPU, not the CPU.  Unfortunately, you haven't mentioned which GPU is is installed in computer, but 20 minutes would suggest that it's not particulary powerful.

 

If you paste a copy of the 'System Info' into a post we will be better placed to offer more advice. You can obtain this info from the Lightroom Help > System Info menu item

 

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New Here ,
Apr 28, 2024 Apr 28, 2024

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1000051625.jpg

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New Here ,
Apr 28, 2024 Apr 28, 2024

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Is this what you need.?

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Community Expert ,
Apr 28, 2024 Apr 28, 2024

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@Jalex67 

No, that's not it.

 

In Lightroom, go to Help > System Info and click copy. Then paste the entire contents into a reply window in this thread.

 

Jane

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New Here ,
Apr 28, 2024 Apr 28, 2024

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1000051640.jpg

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New Here ,
Apr 28, 2024 Apr 28, 2024

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Is this the right one?

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Community Expert ,
Apr 28, 2024 Apr 28, 2024

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The detail there says that the card does not support compute which means that you will not get any acceleration of the denoise operation and it will be incredibly slow indeed. Also, that might be a very old driver too. Go to https://www.nvidia.com/en-us/geforce/drivers/ and look for the newest driver for this card. It might help although this card was first released in 2014, so it is very unlikely to have any of the hardware that helps with AI denoise.

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Community Expert ,
Apr 29, 2024 Apr 29, 2024

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Adding to post by @Jao vdL . Your GP card is from 2014 and even with most recent drivers is unlikely to support the features required for optimal performance when using Denoise,. In fact, I see from your screenshot that the self test carried out during Lightroom launch has failed (see attached screenshot) thus disabling the GPU.

 

The following steps can be used to reset the GPU self test, but will likely fail again in future.

 

1. Quit Lightroom

 

2. Locate the Camera Raw GPU Config.txt file.

  • (Windows) \Users\[user name]\AppData\Roaming\Adobe\CameraRaw\GPU\Adobe Photoshop Lightroom Classic\Camera Raw GPU Config.txt


On Windows, the AppData folder may be hidden. To view the hidden folder on Windows 10, open File Explorer and from the top menu bar, select View and enable the checkbox for hidden items in Show/hide section. For Windows 11 users, open File Explorer and from the top menu bar, select View > Show > Hidden items. 

 

3. Manually delete the Camera Raw GPU Config.txt file.

 

4.Relaunch Lightroom.

 

Note: Camera Raw highlighted in 2 and 3  above is used by Lightroom Desktop and Classic for launch support tests and logs that are common with Camera Raw.

 

Untitled-1.png

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New Here ,
Apr 29, 2024 Apr 29, 2024

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Hi thanks for all that finding it hard locating Camera Raw GPU Config.txt

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New Here ,
Apr 29, 2024 Apr 29, 2024

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Hi again found it deleted it no difference 

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Community Expert ,
Apr 29, 2024 Apr 29, 2024

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Have you updated your gpu driver? A quick check of the nvidia site shows your driver is out of date.

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New Here ,
Apr 29, 2024 Apr 29, 2024

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How do I do that?

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Community Expert ,
Apr 29, 2024 Apr 29, 2024

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Follow the link I posted above for nvidia's driver update website. Find your gpu version in the pop-ups. Download the latest driver. Install the driver by double clicking on the download.

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New Here ,
Apr 29, 2024 Apr 29, 2024

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Thank you so much for your help

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Community Expert ,
Apr 29, 2024 Apr 29, 2024

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The path I quoted above was for Lightroom Classic. You'll need to delete the 'GPU Config.txt' from below path

 

(Windows) \Users\[user name]\AppData\Roaming\Adobe\CameraRaw\GPU\Adobe Lightroom\Camera Raw GPU Config.txt

 

I suspect that it will make no difference for the reasons I provided above. Nevertheless, it's best to delete the correct version of the GPU Config.txt file.

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New Here ,
Apr 29, 2024 Apr 29, 2024

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There were 3 of those one for LRC one for LR & one for Photoshop so I deleted them all..

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