Seems like Grax continues to be a work in progress as it’s always kind of been. It’s tough to lose nebula detail like you showed a little past half way in. I still like NXT while linear with a small amount like 30 or 40 and then some Topaz at the very end so I can eliminate any remaining color or lum noise. Doing it in two smaller phases seems to be more efficient at least for me.
Hey Sascha. QQ. How long does it take to denoise, let's say a 24-megapixel image on a Mac? In PC with NVidia and CUDA GPU acceleration it takes 20-30 seconds. Without GPU acceleration it might take up to a minute.
On my 14” M3 Max MacBook Pro with 128GB of RAM and the maximum number of CPU and GOU cores, I ran the PixInsight benchmarks, and it came out around 22,000. I think that shows that PixInsight is not well optimized for the Mac, when the top performing machines are in the 40k range for the benchmark. But, I don’t know of a way to benchmark GraXpert versus NoiseXterminator. That would be an interesting test.