麒麟2026芯片晶体管密度提升55%，华为公开韬定律技术细节

华为工程师何庭波发布预印本论文，详细披露了韬定律的底层原理与麒麟2026芯片的实测数据1。该论文发表于ChinaXiv预印本平台，发布于2024年9月4日1。

麒麟2026芯片采用逻辑折叠技术，利用3D混合键合工艺将电路垂直堆叠1。这一设计使得晶体管密度从1.55亿/平方毫米提升至2.38亿/平方毫米，增幅达55%1。该芯片实现了1.5μm键合节距，拥有5000万根垂直互连1。同时，麒麟2026的功耗表现明显改善，NPU功耗下降66%，GPU功耗下降58%，CPU大核功耗下降41%1。

在性能方面，NPU在保持29 TOPS算力不变的基础上，通过将频率降低63%、电压从0.85V降至0.55V，使功率密度暴跌73%1。当麒麟2026开启涡轮增压模式时，NPU算力可达70 TOPS，相比前代提升141%1。此外，麒麟2027已在工艺上更进一步，达成1μm键合节距，垂直互连数量突破1亿根1。

Huawei engineer He Tingbo released a preprint paper detailing the underlying principles of Tao's Law and presenting measured data from the Kirin 2026 chip 1. The Kirin 2026 employs logic folding technology, utilizing 3D hybrid bonding to vertically stack circuits, which increases transistor density from 155 million per square millimeter to 238 million per square millimeter—a 55% improvement 1. This architectural advancement enables substantial power efficiency gains across multiple processing units: NPU power consumption dropped 66%, GPU power consumption fell 58%, and CPU power consumption decreased 41% 1.

The optimization demonstrates remarkable performance-per-watt characteristics. The NPU maintains its computational output at 29 TOPS while reducing frequency by 63% and lowering voltage from 0.85V to 0.55V, resulting in a 73% reduction in power density 1. When the chip's turbo boost mode is activated, NPU performance escalates to 70 TOPS, representing a 141% increase compared to the previous generation 1. The Kirin 2026 achieves a 1.5-micrometer bonding pitch with 50 million vertical interconnects 1, while the subsequent Kirin 2027 generation has already reached a 1-micrometer bonding pitch with over 100 million vertical interconnects 1. The research was published on ChinaXiv, a preprint platform, on September 4, 2024 1.