Ultra-low hardware SDXL/PONY, ultra-high quality, ultra-fast speed, ultra-large resolution

This workflow serves as an accelerated demonstration of dmd2_4step_lora, suitable for use with low-end graphics cards. High-definition restoration, facial enhancement, and ultimate zoom capabilities can all be activated on demand.

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Testing Environment:

Win10

Hardware: Graphics card P104-100 8G (overclocking 200, 1000), 20GB memory, CPU G4560.

 Note: The graphics card is equivalent to a castrated version of the 1070, without tensor cores, absolutely low-end

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Performance Settings:

Enable xFormers,

Memory optimization: No optimization (8G or more)

Normal model precision: FP16,

Text encoder: FP8,

U-Net: FP8,

VAE precision: FP16,

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Test Results for Pony and SDXL Models:

Original image: 1.47s/it, 1.5x high-definition restoration: 3.5s/it. After high-definition restoration, performing 4x zoom again takes about 90 seconds to complete, at which point the resolution is 4992*7296

Steps: Default 4 steps, 6-8 steps yield better results,

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20240905

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