Quantization below Q4 noticeably degrades local Agent models

Tests on an RTX 5080 revealed that most quantization levels show no statistical difference, with quality degradation typically becoming noticeable only below Q4, affecting dense models more than MoE models.

2026-08-23 ~ 2026-08-23 · 3 related posts

• Benchmark Report: How Much Do Quants Matter on Modern Models? — KitchenAmoeba4438 · 2026-08-23
• Two weeks of quant testing on a 5080: above Q4, most quants were statistically indistinguishable — KitchenAmoeba4438 · 2026-08-23
• Tests show Quantization has minimal impact until below Q4 for local LLMs — KitchenAmoeba4438 · 2026-08-23