Running MiniMax H3 on RTX 5090: Video-to-Video Generation Takes 20 Minutes
Chaztle · reddit · 2026-08-09
A user reported a significant processing time discrepancy when running the MiniMax H3 model locally on an RTX 5090. While text-to-video and image-to-video speeds are tolerable (taking about 2m 30s for a 720p, 5s, 8-step video), video-to-video tasks take a massive 20 minutes. The poster is looking for insights into why this bottleneck occurs and how to speed it up.
Related event: RTX 5090 Runs MiniMax H3: Slow Video Generation(3 posts)→
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