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Struggling with ltx 2 on rtx 5090: video results

Struggles Persist | Users Share Tips for Better Results on FP4 with RTX 5090

By

Tina Schwartz

Jan 6, 2026, 05:38 PM

2 minutes needed to read

A person adjusting video settings on a computer screen with LTX 2 software running, showcasing editing tools and an RTX 5090 graphics card
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A community of tech enthusiasts is rallying together to tackle persistent issues with video generation using FP4 on the RTX 5090 graphics card. Despite considerable progress, many are still seeking optimal techniques and settings that elevate their results.

Context and Background

As the demand for high-quality video generation rises, users have reported mixed results with the FP4 model in conjunction with the powerful RTX 5090. Posts have emerged on various forums, encouraging those struggling to share strategies that work for them. The current trend showcases many users wrestling with performance drops while grappling with how to best tweak their settings.

Performance Insights From the Community

Users are exchanging valuable feedback on their setups and experiences:

  • Speed vs. Quality: Some users are finding that using FP8 significantly enhances speed and output quality. One user claimed using FP8 made their rendering โ€œfive times faster and way better.โ€

  • Model Comparisons: The 42GB BF16 model is receiving praise for superior results compared to FP4. A dedicated user noted, "Using the 42GB full BF16 model returns better results."

  • High-Resolution Challenges: Others faced challenges running their videos at higher resolutions. One user remarked, "1920 x 1088 works for me with 48 gigs of VRAM," further signaling the importance of hardware specifications.

Expert Tips Shared

Many participants in these discussions have shared specific techniques to improve performance:

"Have you tried the distilled version?" asked one user, highlighting options many overlooked.

While some have found success, others remain frustrated. One user denounced FP4 by stating, "fp4 is just bad," reflecting the sentiments of those dissatisfied with their performance.

Sentiments from the User Community

The overall tone of feedback is mixed, with numerous individuals sharing frustration alongside triumphs. As discussions unfold, the importance of community support is growing.

Key Takeaways

  • ๐Ÿ”Š Many are transitioning to FP8 for improved speed.

  • ๐Ÿš€ BF16 model showcased as higher performance option.

  • ๐Ÿ’ป Success linked to user's specific hardware capabilities.

As video generation technology continues to evolve, users are hoping these shared practices will transform their outcomes and spark enhancements in video quality.

The Road Ahead for Video Generation

Experts predict that as more users transition to the FP8 model, weโ€™ll likely see a surge in performance benchmarks across the board. Thereโ€™s a strong chance that developers will focus on optimizing software for the RTX 5090, aiming to close the gap on performance and stability issues associated with FP4. As ongoing discussions reveal, those with advanced hardware may experience boosts in rendering speed, estimated at improvements of around 50% or more. This momentum suggests a possible push from manufacturers to enhance video generation technology that better leverages these capable graphics cards, ultimately paving the way for smoother, high-quality output in real-time applications, including gaming and content creation.

History's Echo in the Digital World

This situation is reminiscent of the smartphone evolution in the late 2000s, when users struggled to optimize the first wave of apps on new platforms. Much like early adopters of mobile technology who often found their devices lacking in speed or efficiency, todayโ€™s video generators are navigating similar growing pains with cutting-edge hardware. In both instances, a community-driven effort emerged, characterized by the enthusiasm and shared knowledge among users, ultimately leading to breakthroughs in the technology. Just as that initial frustration fueled advancements in smartphone software, these collective experiences in video generation could very well lead to innovations that redefine quality standards in digital content.