Not, PL9 is not weaker than PL8.
Actually now i think, PL9 is pretty good and far better than PL8.
At general, i think (pretty sure) near all (major) issues related with AI masks + DP NR vs GPU VRAM amount. Especially in the case of ‘pre-defined’ (like Sky) mask.
Described in one example:
You have ‘manual AI masks’ and use DP3 NR for export and GPU with 6GB VRAM.
GPU VRAM usage: PL client + ‘Manual’ AI mask + DP3 Export +Windows/Other apps need approx 5.5GB of GPU VRAM. ‘Math’: 0.5+2.5+2+0.5 → 5.5GB
As in this example GPU VRAM is 6GB → you can be fine. May in the ‘edge’ on GPU VRAM amount, but at general can works.
But only IF you use ONLY manual AI masks (and not pre-defined mask) and ONLY if NR is DP3 (and not DP XD2s).
As 'pre-defined (keyword, like: Sky) AI masks use lot more GPU VRAM than ‘Manual’ AI masks. DP XD2s NR use more GPU VRAM than DP3 NR → And it may not fit (definitely not) to to the 6GB GPU VRAM. May its need like 10-12 GB GPU VRAM.
So, “what you can use” about AI stuffs and Deeprime rendering and DP NR and Export is practically only depend on GPU VRAM amount.
I write about that a longer comment a few days back, with more info about the expected GPU VRAM usages, the ‘math’ and what can be works, etc. I really suggest to read thru.
I think DxO ‘biggest mistake’ in PL9 release was: not describe this ‘math’ (approx GPU VRAM usage) at general. In the case of GPU with 12-16GB VRAM seems not an issue, but with 6-8GB GPU issues may come up depend on what AI stuffs used.
But go back to:
i still have some problem when i export some files and have to close and restart the soft, I can understand that the new AI options requires more ressources but i realy do not understand when the crash appends on a very simple task that PL8 could achieve very quickly and safely.
You already write why: ‘the new AI options requires more ressources’ . Yes! That’s why! With PL9 things change regarding GPU VRAM usage. AI masking (model) and Deeprime rendering use GPU VRAM - and they use not a small amount. And Export also need to use AI model if the photo edited with AI mask. I think mainly that’s why you can encounter errors in Export. May not enough GPU VRAM remain for Export GPU VRAM usage.
Seems GPU VRAM usage is ‘math’. Software can’t use what is not exist (if not enough GPU VRAM).
Note: with ‘CPU only’ mode everything works (at least if you has like 32GB of system memory). Of course as CPU as-it-is performance.
Note: i know Export also has some other issues, colleagues already go in depth on that in other threads. May also worth to check thru in this thread: