Optimizing MiniMax H3 Ref2VA workflow on RTX 4080

KimSwallowsMD · reddit · 2026-09-01

The author details a MiniMax H3 Ref2VA workflow optimized for RTX 4080 16GB. It uses pruned INT8 models, Qwen3-VL encoder, PDD acceleration, and neural 3D latent upscaling to generate video with audio. Current limitations include hitting VRAM/RAM caps after 7-8 seconds and soft facial details. The post seeks help on memory management techniques, upscaler positioning, refinement strategies to improve detail without identity shift, and conditioning methods for continuous generation.

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