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Stable Diffusion MiniMax H3 achieves 3K resolution on 4090 with memory optimization

By PulseAugur Editorial · [1 sources] ·

A user on Reddit shared a method to generate higher-resolution images with Stable Diffusion's MiniMax H3 model on an NVIDIA RTX 4090 GPU. By implementing the 'H3 Memory Optimization' node from Zironic's GitHub repository, users can overcome 'illegal memory access' errors that previously limited resolutions. This optimization allows for resolutions up to 3072x1728 (5.3 megapixels) to be rendered without exceeding the 24GB VRAM of the 4090, albeit with significantly longer processing times. AI

IMPACT Enables higher resolution image generation on consumer hardware by optimizing memory usage.

RANK_REASON User-shared optimization for existing software/model.

Read on r/StableDiffusion →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Stable Diffusion MiniMax H3 achieves 3K resolution on 4090 with memory optimization

How we ranked this

Signal score
13 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-shared optimization for existing software/model.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, infra
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/StableDiffusion TIER_2 English(EN) · /u/friedlc ·

    Native 3K MiniMax H3 on a 4090 thanks to this node: 3072×1728, 8 s, 25 steps in 2h21m, no more "illegal memory access"

    <table> <tr><td> <a href="https://www.reddit.com/r/StableDiffusion/comments/1xis0z3/native_3k_minimax_h3_on_a_4090_thanks_to_this/"> <img alt="Native 3K MiniMax H3 on a 4090 thanks to this node: 3072×1728, 8 s, 25 steps in 2h21m, no more &quot;illegal memory access&quot;" src="ht…

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