MiniMax H3 Upscaling Test: Comparing 3 ComfyUI Pipelines
Altruistic_Tax1317 · reddit · 2026-08-24
A side-by-side test of 3 upscaling pipelines for MiniMax H3 in ComfyUI:
- LTX 2.5 (Standalone): Fastest and lightest on VRAM. Good for clean sources but lacks fine sharpness on complex textures.
- Model + LTX 2.5: Runs a quick upscaler (e.g., RealPLKSR) before LTX 2.5. Balances clarity, speed, and VRAM efficiency.
- SeedVR: Recreates micro-details with highest fidelity but demands significantly more time and VRAM.
- Sync Tip: MiniMax H3 and LTX require different frame steps. Using math nodes to auto-trim frames (e.g., 158→153) prevents audio desync.
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