Verified65% confidenceBenchmarkExact time
4-bit量化（如Q4_K_M）通常可将3B模型内存占用从约6GB压缩至约2GB，精度损失低于2-3%
3
Sources
65%
Confidence
Long-term
Relevance
7/16/2026
First Seen
Sources
Related Claims
VerifiedQ4_K_M 采用混合精度，部分关键权重以 6bit 存储，其余以 4bit 存储，整体平均约 4.5bit84% similarUnverifiedGGUF格式支持4-bit、8-bit等多种精度级别，可将70亿参数模型的内存占用从约14GB（FP16）压缩至约4GB（Q4_K_M量化），推理精度损失通常在1-3%以内82% similarUnverified一个32K上下文窗口在Q4量化模型上可能额外占用2-4GB内存80% similarUnverified量化技术（如Q4_K_M）可将原本需要数十GB显存的模型压缩到消费级硬件可承载的范围78% similarVerified4-bit量化将每个参数压缩至0.5字节，理论上将140GB压缩至约35-40GB78% similar
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