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Peter A Lund
Inspiring
October 28, 2021
Open for Voting

P: GPU usage for speeding up "import" and "export"

  • October 28, 2021
  • 4 replies
  • 660 views

Hey , 

 

here an article : 

https://www.dpreview.com/articles/3278896840/head-to-head-adobe-lightroom-classic-vs-capture-one-21

 

So when it comes to speed we are 5 times slower. Why? 

 

Can we pls have the GPU use for "import" and "export" ? 

 

These are the most painfull tasks, you cant even do anything in the app...

 

So GPU and something like MediaEncoder? for Lightroom.

 

And why can´t we use the MediaEncoder for this? 

 

Its there and its fast. So for the export we would have a racehores. 

 

Then we only need something like speedy prelude for Lightroom. 

 

Who wants more speed ? 

 

more : ______

less: ________

 

thanxs 

Peter 

 

 

4 replies

Participating Frequently
June 11, 2025

So, when do you plan to utilize GPU for generating previews?

"

Rikk Flohr: Photography merged a idea Previews generated by GPU from board Lightroom Classic Ideas into topic P: GPU usage for speeding up "import" an... in board Lightroom Classic Ideas

"

 

Wow, my post was merged into this thread so fast, that I wish Adobe spent the same resources and enthusiasm into actually resolving these tickets ("ideas"). This thread is from 2021, just saying.

johnrellis
Legend
December 12, 2023

"Adobe could make greater use of GPUs particularly for the import and export functions."

 

LR Export starting using the GPU in version 11.4 (June 2022). On my Macbook Pro M2 Max (2023), the GPU provides about a 50% speedup for exporting raws.

 

But preview-building still doesn't use it.

Inspiring
December 12, 2023

This thread was started over two years ago.  Things have changed markedly since then as follows:
1.  Cameras are capable of ever increasing bust speeds and photographers are using it.  This results in huge import loads.
2.  The introduction of AI Denoise has meant that many of us had to install GPUs, beef up GPUs or replace old GPUs with AI capable GPUs.

I have an Intel i7-12400K CPU and a RTX 4060 8G GPU.  I find that during import, the CPU runs at near 100% while the GPU sits there doing absolutely nothing, not even in the preparation of 1:1 previews.  Surely, now that it's almost a necessity to have a GPU for LrC, Adobe could make greater use of GPUs particularly for the import and export functions. 

johnrellis
Legend
October 28, 2021

Thanks for the link to the DP Review article -- I missed that. To clarify, the article's testing says LR is better than Capture One on import but far worse on export:

 

"Import Test. When it comes to import and preview-generation, it might surprise you to learn that Lightroom Classic was faster across the board. ... On our two high-powered PCs, Lightroom was able to generate previews from the Fuji GFX files in approximately 40 seconds, while Capture One performed the same task in about 1 minute and 35 seconds— a 58% difference.:

 

"Export test. The results of our export test show that the more powerful the machine, the wider the performance gap between Capture One and Lightroom. This is because Capture One uses GPU acceleration for processing and exporting files, while Lightroom Classic does not.... Our ASUS G14 was able to export all one hundred Fuji GFX 100 raw files, fully edited, in just 6 minutes and 39 seconds when using Capture One. This same export, with the same edits, took more than 24 minutes in Lightroom Classic."