Why The CPU Is Back
The Map of AI Series
To understand why Arm just delivered a record quarter and doubled its AGI CPU demand in six weeks, you have to step back from the chip layer and look at the scaling curve we are actually on.
The AI map is not one curve.
It is three stacked regimes, each moving the bottleneck to a different layer of silicon. We are now firmly inside the third regime, and the third regime is where the CPU comes back from the dead.
The frame in one line: pretraining scaling exhausted itself, inference-time scaling absorbed the slack, and agentic scaling is now the dominant axis. Each regime expanded total compute consumption.
Each redistributed what kind of compute is consumed. The first two regimes fed NVIDIA. The third regime feeds Arm — not at NVIDIA’s expense, but on top of it.
This is part of the Map of AI Series
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