As Stenis describe, GPU VRAM amount is the key point.
PL9 has minimum requirement’s, like 6GB GPU VRAM, etc.
I like to note: even system memory (16GB) in your system is in the minimum requirement.
Whatever your ‘Intel Arc Graphix onboard’ VRAM amount (ohh, exactly what in your system amount?), may this helps on you:
DxO 9.2.1 + Manual AI mask + DP3 NR Export can work even with 4GB GPU VRAM!
In the nutshell: DP3 and Manual AI masking.
Exporting with Deep Prime XD2/XD3 takes 2-4 minutes per image.
AI Acceleration in GPU mode more-or-less its just depend on your GPU performance (and of course overall system performance) - Like in Export. Note: I suggest not use ‘Auto’ in the Preferences-Performance-AI acceleration but choose manually the GPU. OpenCL also need to be enabled.
The 2-4 minute suggest to me, its runs on ‘CPU only’ mode or OpenCL not enabled, etc.