Running MiniMax H3 on an RTX 3090: Sage Attention + Triton cut 10s video gen from 18 to 10 minutes
Fun-Helicopter21 · reddit · 2026-09-22
A newcomer asks for advice on further speeding up local MiniMax H3 video generation. Setup: RTX 3090 with ComfyUI, generating at 1280×736 (0.9MP).
So far, using Sage Attention + Triton, they cut generation time for a 10-second video from 18 minutes down to 10. They're now exploring deeper tweaks (block-skipping, spectrum, and other methods) inside the ComfyUI node graph but struggle with node placement and connections, and are asking the community for further optimization tips.
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