Architects' Tech Alliance

Sep 30, 2025 · Artificial Intelligence

How KV Cache and CachedAttention Revolutionize LLM Inference Efficiency

This article explains how key‑value (KV) caching and the new CachedAttention technique dramatically reduce large‑language‑model inference costs by reusing stored attention data across dialogue turns, leveraging a three‑tier memory hierarchy of HBM, DRAM, and SSD to overcome bandwidth and capacity bottlenecks.