Physix Frontier · News Briefing Card (IT Home · Oct 12, 2026)

Microsoft Unveils Maia 300 AI Chip, Deploys in 2027

KEY FACTS

  • Microsoft has officially unveiled the Maia 300 AI chip, with plans to deploy it in 2027.
  • The chip is built on TSMC's N2P 2-nanometer process and uses a multi-chiplet design.
  • It packs 288GB of HBM4 memory with 18TB/s of memory bandwidth.
  • It delivers 13.8 PFLOPS of FP4 compute and 6.9 PFLOPS of FP8 compute.
  • The SoC is rated at 950W, and a single rack can hold 96 chips.

KEY DATA

288GBHBM4 Memory Capacity
18TB/sMemory Bandwidth
13.8 PFLOPSFP4 Compute
950WSoC Power

PHYSIX OBSERVATION

With its in-house chip line now iterating to the 300 series and adopting TSMC's most advanced 2-nanometer node, Microsoft is making it plain it wants to cut its dependence on Nvidia. The 950W power draw and 12,000-chip cluster scale show this is aimed at hyperscale inference, not a small side project. For cloud providers, in-house silicon is shifting from a backup option to a primary force, and the compute cost structure could be rewritten.

Source: IT Home report