LTX2.3 can render a 20-second video with audio on a 7800XT in 12.5 minutes
okfine1337 · reddit · 2026-07-25
LTX2.3 can generate a 20-second video with audio on an AMD 7800XT in 12.5 minutes
A user reports running LTX2.3 on an Ubuntu 24.04 machine with a 7800XT and 32 GB of RAM. After tweaking a ComfyUI workflow, they can generate a 1280×704, 20-second video with sound in 12.5 minutes.
Setup details
- They modified a community 12 GB GGUF workflow.
- The post includes a GitHub JSON workflow file.
- A long list of launch options and environment variables is provided for ROCm, MIOpen, Triton, Flash Attention, and ComfyUI tuning.
Why it matters
This is a practical report on getting a video-generation model running on consumer AMD hardware, with concrete latency numbers and a reproducible configuration.
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