Topaz Gigapixel AI x Topaz Photo AI

Hi

Do you believe that the sharpening and denoising of Topaz Gigapixel AI and Topaz Photo AI are the same thing? Do they have the same quality?

Another question:
I’m enlarging a black and white image on the Gigapixel and the final result has very small colored dots.

Is it a configuration?
Can this be corrected using its own features?

Thanks