Developer boosts Stable Diffusion speed by 40% on Apple M3 Pro using Metal

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A developer has shared a method to significantly accelerate image generation in Automatic1111, a popular Stable Diffusion web UI, on Apple Silicon hardware. By leveraging Apple's Metal graphics framework, generation times for SD 1.5 models dropped from 8–10 seconds down to 3–7 seconds on an M3 Pro chip. The optimization represents roughly a 40% speed improvement for users running the tool natively on modern Macs. The findings were published on the developer's personal blog and have drawn early attention on Hacker News. The approach highlights ongoing community efforts to better utilize Apple's proprietary GPU architecture for AI workloads.

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ProgrammingDEV Community ·

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