When you feed it a low-resolution file, it doesn't just stretch the image. It reconstructs it. It generates new pixels based on its training, effectively "inventing" detail that wasn't in the original source file.
Where can I download an older version 2.6.4 - Topaz Community Topaz Video Enhance Ai 2.6.4 Download
: Offers manual control over parameters like sharpening, noise reduction, and dehaloing. When you feed it a low-resolution file, it