[jdonald]

> the story for performance-per-watt under load appears less clear.

Is this referring specifically to their in-order cores (Cortex-A53, A35), out-of-order cores (Cortex-A72, A73), or big.LITTLE configurations in general? *

Thinking more broadly, the next era of power-efficient computing may depend more on heterogeneous architectures than the CPU alone. The Arm ML Processor IP and corresponding offerings from competitors play a large role in this.

* Can be generalized to custom cores designed by NVIDIA, Qualcomm, Samsung, Apple, and other vendors.