Topaz Photo AI is definitely much better than ON1 NoNoise AI, but nobody can beat DxO PL and its DeepPRIME XD! Much more details in photos. See the attached photos…
I use DxO PhotoLab 6 and its DeepPRIME XD in combination with Capture One Pro 23. Otherwise, DxO’s PhotoLab 6 is pretty much useless as a DAM. Nothing can beat Capture One in its speed. However, DxO’s noise reduction is second to none! I also attached photos from Capture One’s Noise Reduction tool and Pixelmator Pro’s Denoise. Both are pretty much useless for any serious noise reduction.
Originals available here: iCloud