Experiment Uses GPU Texture Units to Decode LLM Weights, 1.37× Faster
hp0303 · reddit · 2026-08-23
The author presented "Texelator," a project exploring the use of dedicated GPU texture hardware to decode low-bit LLM weights.
Technical Details:
- Method: Stores weights in BC4 blocks and reconstructs them during GEMV operations via NVIDIA texture units.
- Performance: Achieved approximately 1.37× speedup in the current setup on an RTX 4080.
- Scope: Currently tested on a limited set of hardware; the author is inviting benchmarks and feedback from different GPU architectures.
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