AINewsnow

MiniMax H3 Performance on RTX 5090 Draws Community Optimization Efforts

This story is from 2026-08-29. It is preserved in the archive; the latest stories are on the live feed.

Users report varying speeds for MiniMax H3 on RTX 5090 GPUs, with one finding 2MP generation 8.7x slower than expected due to possible VRAM thrashing, while another seeks fastest 768p workflow on a 24GB laptop variant.

Read the full story at r/StableDiffusion ↗

Timeline · 2 reports

  1. 2026-08-29 18:06 · r/StableDiffusion
    Fastest MiniMax H3 768p workflow on RTX 5090 Laptop 24GB without sacrificing quality?
  2. 2026-08-29 02:45 · r/StableDiffusion
    MiniMax H3 on an RTX 5090: what actually made it faster without wrecking quality

More stories

  1. Follow-up: making a quieter TNG scene with MiniMax H3 in ComfyUI, and why I had to regenerate the whole thing at 1MP — r/StableDiffusion
  2. A quick Minimax H3 news round-up - 18th September 2026 — r/comfyui
  3. H3 Minimax swap — r/comfyui
  4. Fix for the MiniMax H3 VAE grid / tile-seam artifact in ComfyUI Core — usable now via PR #16422 — r/StableDiffusion
  5. Meridian Camera H3 — by Bruxos do VFX — r/comfyui
  6. SPEEDing up MiniMax-H3 without retraining - V2, now with more samplers and considerably less jank — r/comfyui
  7. I Built Custom Nodes for LONG Seamless MiniMax-H3 Videos! [FREE Nodes + ... — r/StableDiffusion
  8. Minimax H3 Faceswap For VFX — r/comfyui

Get the daily brief of stories like this at 6:30 every morning →