RTX 3060 12GB Tested Running MiniMax-H3: It Works But Slowly

Tests by multiple developers confirm that the consumer-grade RTX 3060 12GB can run the video generation model MiniMax-H3 locally, but the generation speed is extremely slow and performance heavily relies on memory configuration and optimization parameters. This testing trend shows that while high-end AI models are becoming compatible with mainstream hardware, the practical usability on consumer devices still faces massive time costs.

Confirmed

• Hardware Baseline: The 12GB VRAM of the RTX 3060 is sufficient to run the MiniMax-H3 model locally. Multiple users successfully generated images or videos across different system memory environments (16GB to 128GB RAM).
• Massive Variance in Generation Time: Due to different system memory and optimization methods, generation times vary wildly. @RobertBrown7425, using 64GB RAM with EasyCache and SageAttention optimizations, took 4 minutes to generate a 5-second video; @merica42069 took 17 minutes and 2 seconds on 128GB RAM to generate a 10-second 480×864 resolution vertical video; @irmemon225 took 30 minutes on 16GB RAM for a 10-second video; @PitifulArcher4381 took 38 minutes and 55 seconds on 32GB RAM to generate 20 seconds of content.
• Parameter Tuning Dilemma: @Superb-Painter3302 found that generating a mere 0.4-second video took 2400 seconds, noting that the abnormal time might be due to improper ComfyUI parameters and model configurations, and is seeking better setups.

Why It Matters

• Lowering AI Video Barriers: Despite unsatisfactory speeds, the fact that a 12GB VRAM consumer GPU can successfully run such large models has broken previous hardware barriers, offering individual developers a zero-cost way to experiment.
• Reality Check on Hardware Bottlenecks: The test results directly reflect the decisive impact of memory capacity on generation efficiency, highlighting the compute and time consumption pain points mainstream PCs face when handling heavy AI inference tasks.

2026-08-04 ~ 2026-08-04 · 5 related posts

• MiniMax-H3 reportedly takes 2,400 seconds to make a 0.4-second clip on a 3060 12GB — Superb-Painter3302 · 2026-08-04
• [source] Minimax H3 runs on an RTX 3060 12GB, but a 10-second clip takes 30 minutes — irmemon225 · 2026-08-04
• RTX 3060 takes nearly 39 minutes to generate 20 seconds of output — Pitiful_Archer_4381 · 2026-08-04
• [source] RTX 3060 12GB Test: Generates 10s Portrait Video Locally in 17 Minutes — merica420_69 · 2026-08-04
• [source] Running MiniMax-H3 on RTX 3060: Renders 5s Video in 4 Minutes — Robert_Brown_7425 · 2026-08-04