Quantization Precision vs. Performance

Quantization Precision vs. Performance

The definitive guide to LLM efficiency trade-offs

This comprehensive study evaluates quantization formats (FP8, INT8, INT4) across the Llama-3.1 family, revealing optimal efficiency-accuracy trade-offs for LLM deployment.

  • FP8 quantization performs virtually losslessly across all models and tasks
  • INT8 formats show minimal accuracy loss while delivering substantial performance gains
  • INT4 quantization offers dramatic acceleration but with meaningful accuracy degradation
  • Model scale matters: larger models (70B+) better preserve accuracy under aggressive quantization

For engineering teams, these findings enable evidence-based decisions when selecting quantization strategies to balance inference speed, memory requirements, and output quality in production environments.

"Give Me BF16 or Give Me Death"? Accuracy-Performance Trade-Offs in LLM Quantization

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