❯ Arm Reveals First In-House Production CPU at Hot Chips: 136 Cores Built for Agent Orchestration

FIRST IN 36 YEARSArm detailed the full specs of its AGI CPU at Hot Chips 2026 — the first time in company history it is selling finished silicon instead of IP. Each chip packs up to 136 Neoverse V3 cores on the Armv9.2 architecture, running at up to 3.7 GHz, built on TSMC 3nm process with a dual-chiplet design. The part exceeds 100 billion transistors with a 300-watt thermal design power.

SPECS & PARTNERSPer Arm’s disclosure at the event, each core gets a dedicated 2 MB L2 cache, with an out-of-order execution window of over 384 entries, supporting 10-way dispatch and 8-way commit. Memory and I/O are directly integrated, with latency below 100 nanoseconds. Twelve channels of DDR5-8800 deliver 845 GB/s of bandwidth, with up to 6 TB of memory capacity per chip, plus 96 PCIe Gen6 lanes and CXL 3.0 support. The chip was co-developed with Meta, and OpenAI, Cerebras, and Cloudflare are all on the initial partner list.

WHY NOWArm positions this as the CPU-side orchestrator for agent infrastructure: coordinating accelerators and managing data movement. That role has traditionally defaulted to x86, but agentic workloads have raised its stakes—each task requires repeated tool calls, context switching, and coordination across multiple models, so CPU-side scheduling latency compounds along the inference chain. Intel and AMD’s data center orders now face a competitor that both sets the standard and builds its own silicon. Cloud vendors’ next round of CPU procurement lists will show the first shifts.

▪ SIGNALThe shift from collecting licensing fees to selling chips means Arm is taking business from its own customers. That pivot is worth more than the 136-core number.