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Challenges of Running MiniMax H3 on AMD GPUs

Users attempting to run MiniMax H3 locally on AMD GPUs have faced a series of challenges, from dependency crashes and high latency to black screen outputs, prompting ongoing community troubleshooting.

2026-08-05 ~ 2026-08-09 · 3 episodes · 6 posts

Episode 1 · Running MiniMax H3 on AMD GPUs Hindered by SageAttention Dependency (2026-08-05, 2 posts)

Users running the MiniMax H3 model locally via ComfyUI on AMD GPUs face frequent crashes. The main issue is that most community workflows heavily rely on SageAttention by default, causing errors during model loading.

Episode 2 · Running MiniMax H3 on AMD GPUs: Tests and Optimization (2026-08-06, 2 posts)

Users have tested running the MiniMax H3 video generation model locally on AMD GPUs, experiencing long processing times with default settings. To address this, community members have shared optimization tips and parameter guides for ComfyUI to significantly improve efficiency.

Episode 3 · MiniMax H3 Black Screen Issue on AMD GPUs (2026-08-09, 2 posts)

Developers encountered a black screen issue (with only audio) when running the MiniMax H3 model locally on AMD RX 7900 XTX GPUs using ComfyUI. Investigations revealed that the problem is caused by VAE decoding compatibility defects on AMD hardware.