Unverified50% confidenceFactExact time
一个200K上下文窗口的请求，其KV Cache可能占据数十GB显存
1
Sources
50%
Confidence
Long-term
Relevance
7/15/2026
First Seen
Sources
Related Claims
Unverified数千亿参数模型处理128K上下文窗口时，KV Cache可能占据数十GB显存84% similarUnverified当上下文长度扩展至百万Token时，KV Cache本身就会占用数十GB显存79% similarUnverified以LLaMA-2 70B为例，处理4096 token上下文、批量大小32时，KV Cache可消耗超过80GB显存75% similarUnverified当前最新大模型拥有128K甚至200K token的上下文窗口，但在处理复杂工程任务时仍面临注意力稀释问题75% similarUnverified对于拥有32层、32头注意力的典型7B模型，每个token需约0.5MB显存存储KV Cache，生成1000个token则需额外约500MB显存74% similar
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