# AMD Highlights 5.39-Second AI Video Test on Eight MI355X GPUs

By Simon Yoon

Canonical URL: https://www.tokenpost.com/news/technology/35239
Published: 2026-10-20T02:57:01.000Z
Updated: 2026-10-20T02:57:01.000Z
Section: Technology

> A separate test produced a finished 15-second MP4 in 6.49 seconds, compared with 150.5 seconds for a baseline on the same GPUs.

AMD highlighted a Nunchux AI test in which eight Instinct MI355X GPUs completed the measured generation of a 15-second video in 5.39 seconds, putting the model’s output ahead of playback.

A five-second clip took 1.33 seconds under the same test conditions. Those measurements include text processing, video generation and audio and video decoding, but exclude final MP4 encoding. AMD highlighted the results Oct. 19.

A separate test measured the wait for a finished file. The Nunchux setup produced a 15-second MP4 in 6.49 seconds, while an SGLang baseline using the same prompt and eight MI355X GPUs took 150.5 seconds. That made the optimized setup 23.2 times faster for the completed file in this test.

The distinction between the two timings matters: 5.39 seconds measures generation before the final encoding step, while 6.49 seconds measures delivery of the MP4. Both results were shorter than the clip’s 15-second playback time, but neither establishes how the setup would perform across other prompts or deployments.

MiniMax-H3 is a video-generation model. Nunchux tuned the model and its runtime for AMD’s ROCm platform, including the calculations used to build video frames. For the 15-second clip, the denoising stage fell from 143.1 seconds in the baseline to 4.04 seconds in the optimized setup.

A separate Sol-H3 benchmark used eight NVIDIA B300 GPUs. The MI355X generation times were 18.5% to 19.4% lower across video durations of five, 10 and 15 seconds. Both sets of timings excluded final MP4 encoding, but the results came from different hardware and software setups rather than a single controlled test.

The cross-hardware comparison used video at 1344 by 768 pixels and 24 frames per second.