Unverified50% confidenceFactExact time
INT4 仅有 16 个离散值可用，INT8 有 256 个离散值
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
INT4 ConvRot W4A4量化：ComfyUI低显存运行大型图像模型实战
redditr/comfyui7/11/2026
Related Claims
UnverifiedINT4权重在芯片上仅需4个晶体管的存储单元，而FP32需要32个71% similarUnverifiedFP16格式下每个参数占2字节，INT4格式仅占0.5字节，理论上可实现4倍压缩比67% similarUnverifiedC语言中int类型通常占用4个字节（32位），最大只能表示约21亿65% similarUnverifiedNVFP4格式仅能表示约16个不同量级63% similarUnverified以Q4_0格式为例，每32个FP32权重被打包为一个量化块，包含一个缩放因子和32个4bit整数，平均每参数约占4.5bit，内存占用缩减至原来的约1/863% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/489934API
curl https://kongchang.com/api/v1/knowledge/claims/489934MCP
get_claim(id=489934)