Mobile Engineering

On-Device NPU Power Consumption: Measuring Battery Drain of Local LLMs

A hardware engineering benchmark measuring the electrical current draw of running 3B and 7B models on mobile NPUs. We evaluate Apple A19 Pro, Qualcomm Snapdragon 8 Gen 5, and Google Tensor G6 energy efficiency.

Sachin Sharma
Sachin SharmaCreator
Sep 2, 2026
9 min read
On-Device NPU Power Consumption: Measuring Battery Drain of Local LLMs
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A hardware engineering benchmark measuring the electrical current draw of running 3B and 7B models on mobile NPUs. We evaluate Apple A19 Pro, Qualcomm Snapdragon 8 Gen 5, and Google Tensor G6 energy efficiency.

Sachin Sharma

Sachin Sharma

Software Developer & Mobile Engineer

Building digital experiences at the intersection of design and code. Sharing weekly insights on engineering, productivity, and the future of tech.