MiniMax H3 on RTX 5060: Wildly Varying Generation Times with Same Prompt

Merijeek2 · reddit · 2026-08-04

A developer running the MiniMax H3 model locally via ComfyUI (wired with SageAttention) on an RTX 5060 (16GB VRAM) and 64GB RAM reports extreme inconsistencies in performance. Even when using the exact same workflow and prompt, video generation times fluctuate wildly, taking anywhere from 8 minutes to over 60 minutes. The author is reaching out to the community for insights into what might be causing these massive variations.

Original post →

More from Infra

Infra channel →