My attempt at a straightforward upscaling workflow utilizing SUPIR. This workflow was created with the initial intent of restoring family photos, but it is not at all limited to that use case. Can be complemented with <a target="_blank" rel="ugc" href="https://civarchive.com/models/523731">ComfyUI Fooocus Inpaint Workflow</a> for correcting any minor artifacts. (None of the images showcased for this model are touched up so as to accurately display its capabilities as a standalone process.)My current preference for checkpoint to use with this workflow is <a target="_blank" rel="ugc" href="https://civarchive.com/models/43977?modelVersionId=570138">HelloWorld XL v7</a> and for upscaling model either <a target="_blank" rel="ugc" href="https://openmodeldb.info/models/4x-RealWebPhoto-v4-dat2">4xRealWebPhoto v4 DAT2</a> or <a target="_blank" rel="ugc" href="https://openmodeldb.info/models/4x-UltraSharp">4xUltrasharp</a>.Based on my own usage this workflow should be able to run on 8gb of vram on the preset settings. Some additional setting considerations if you have capable hardware:<ul><li>Experiment with disabling fp8_unet and/or enabling high vram on the SUPIR model loader.</li><li>In the SUPIR sampler you'll likely want to enable keep_model_loaded (especially if you don't plan to load more models downstream needing to free up vram for them).</li><li>You can also bypass the downscaling step (image resize node) in the upscale group.</li></ul>I'd recommend using <a target="_blank" rel="ugc" href="https://github.com/ltdrdata/ComfyUI-Manager">ComfyUI-Manager</a> for installing and updating any other custom nodes used within the workflow.

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