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Upgrade the memory of your 2020 iMac up to 128GB
Upgrade the memory of your 2020 iMac up to 128GB

Adobe Lightroom Memory Usage: Excessive?

Consult with Lloyd on your computer or photographic purchase, backup strategy, archival and storage strategy, etc.

After running some Import/Export tests with Adobe Lightroom Classic 11.3.1, I was startled to see its memory usage peak at 74GB, and even when it was done processing, it was still scarfing up a whopping 69GB memory. All to Import 600 raw files, then Export them to JPEG.

What does it do when you have a catalog with 50K images instead of 0.6K images?

By comparison, Adobe Lightroom Classic 10.4 on macOS Mojave on a 2019 iMac 5K used only about 5GB memory for the same test on the same file set.

It makes one wonder whether 64GB memory is enough for memory-hungry Lightroom.

Apple Mac Studio M1 Ultra/Max and other M1 Mac buyers should probably be thinking in terms of 128GB memory if at all feasible, with 64GB a bare minimum. A sorry state of affairs, memory is not upgradeable on any of the M1 Macs as of mid-2022.

Adobe Lightroom Classic 13.3.1 memory usage after importing/exporting 600 raw files
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