Ultra fast PMRF upscaler! 3.79s on medium machine. 2x scale.

Who it's for: creators who want this pipeline in ComfyUI without assembling nodes from scratch. Not for: one-click results with zero tuning — you still choose inputs, prompts, and settings.

Open preloaded workflow on RunComfy

Open preloaded workflow on RunComfy (browser)

Why RunComfy first
- Fewer missing-node surprises — run the graph in a managed environment before you mirror it locally.
- Quick GPU tryout — useful if your local VRAM or install time is the bottleneck.
- Matches the published JSON — the zip follows the same runnable workflow you can open on RunComfy.

When downloading for local ComfyUI makes sense — you want full control over models on disk, batch scripting, or offline runs.

How to use (local ComfyUI)
1. Load inputs (images/video/audio) in the marked loader nodes.
2. Set prompts, resolution, and seeds; start with a short test run.
3. Export from the Save / Write nodes shown in the graph.

Expectations — First run may pull large weights; cloud runs may require a free RunComfy account.

Overview

This ComfyUI PMRF workflow implements the cutting-edge Posterior-Mean Rectified Flow algorithm for photo-realistic face restoration. Achieve lightning-fast 2x image upscaling in just 1.29 seconds while using only 3.3GB VRAM. The workflow excels at restoring blurry faces, removing noise, and enhancing image quality with superior detail preservation compared to traditional methods like Topaz PhotoAI.

Important nodes:

• For 4K output (3840×2160):

• For 4K output from 1280×720:

• For 2K output (2560×1440) from 1280×720:

• For custom sizes:

Notes

ComfyUI PMRF Low VRAM Upscaler | Ultra Fast Image Enhancer — see RunComfy page for the latest node requirements.