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shikamu
shikamu
Known Participant
December 18, 2024
Question

Does LrC run faster on Mac Sequoia?

  • December 18, 2024
  • 1 reply
  • 812 views

My M2 Pro Mac is running Ventura 13.7.2.  I did not update to Sonoma and have not yet updated to Sequoia.  Looking at the new features in Sonoma and Sequoia I have not seen anything I care about, but if LrC and Topaz run faster on them than Ventura then that would be a good reason to update my MacOS.

 

I have heard conflicting things about the use of the Apple Neural Engine in LrC, for example.  Some have said LrC uses it and some say it doesn't.  I have also heard conflicting statements saying the Neural Engine is faster in Sonoma and faster yet in Sequoia and other statements saying it has gotten slower and is actually faster in Ventura.  Some have said that Sequoia also uses a lot more memory.

 

I am not against updating to Sequoia, but since there are no new features I have seen so far that I care about then I am in no hurry.  But if there are performance improvements for LrC and Topaz then I would then have a good reason to update.

 

Thoughts?  Experiences?

 

 

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1 reply

johnrellis
johnrellis
Legend
December 19, 2024

I haven't seen any reports here about general LR speedups by upgrading to Mac OS 15 (Sequoia).

 

One consideration: LR is very sensitive to issues (speed and bugs) in graphics drivers, especially in its AI commands' usage of the GPU.  On Mac, the only way to get updated drivers is to update the OS.  

 

"Neural Engine"

 

LR's use of the Neural Engine was disabled (again) in LR 14.0 due to bugs in the engine:

https://www.lightroomqueen.com/whats-new-in-lightroom-2024-10/ 

shikamu
shikamuAuthor
Known Participant
December 21, 2024

Thank you for that information.

 

I am up to date with Ventura.  13.7.2 was released just a few days ago so any driver updates are still happening.

 

Do you know if LrC uses the Neural Engine for other AI stuff?  Such as AI masking, etc.?

 

That is unfortunate that the Neural Engine is not used for LrC Denoise.  DxO and Topaz are able to use the Neural Engine so there must something very unique about LrC which prevents Adobe from using it.  Do you know what it is?

johnrellis
johnrellis
Legend
December 21, 2024

"13.7.2 was released just a few days ago so any driver updates are still happening."

 

My understanding is that updates to old major versions of Mac OS (e.g. 13 and 14) are for important security vulnerabilities only. But it's hard to know authoritatively -- Apple is quite opaque about what's changed in a Mac OS release, and I've never seen a mention of updated graphics drivers. 

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