I run PhotoLab 9.2.1 without problem with a NVIDIA RTX 4060 8GB external GPU.
My computer is a HP Spectre x360 with 16GB RAM. Windows 10 Pro.
The GPU driver is NVIDIA Studio version 581.57, published Oct. 14th, 2025. NVIDIA says: “What’s Fixed: DxO PhotoLab 9: stability issues when using the AI masks”. I have not made extensive tests with AI masks, but up to now I had no error.
I have run several exports of about 400 images, taking around 45 minutes each, and without any error. The RAW files are from an OM-1, with several corrections, and XD/XD2s denoising.
It runs approximately at the same speed than PhotoLab 8. See results on the spreadsheet located here: PL4 GPU benchmarking? - #21 by jch2103 where I have tested several PhotoLab versions.
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