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Real-ESRGAN ncnn Vulkan vs Topaz Gigapixel: catalog facts
Real-ESRGAN ncnn Vulkan	Topaz Gigapixel
Free Free and open source under the MIT licence.	Paid Commercial software sold by Topaz Labs, with cloud credits for cloud rendering.
Windows, Command line	Windows, macOS
Runs locally on Vulkan-capable GPUs No Python environment needed	Upscaling up to 16x pixels Face recovery for portraits and old photos
Command line only Repository has seen little activity since 2024	Paid commercial software Local rendering needs capable hardware
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.