Microsoft Maia 300 AI chip arrives with monstrous 288 GB HBM4 memory and 18 TB/s bandwidth

What happened

Microsoft has unveiled the Maia 300, its third-generation AI accelerator featuring 288 GB of HBM4 memory, 18 TB/s bandwidth and up to 13.8 PFLOPS of FP4 compute performance. Microsoft Maia 300 AI chip arrives with monstrous 288 GB HBM4 memory and 18 TB/s bandwidth ⓘ Microsoft Microsoft has unveiled the Maia 300, its third-generation AI accelerator featuring 288 GB of HBM4 memory, 18 TB/s bandwidth and up to 13.8 PFLOPS of FP4 compute performance. Microsoft is a software and software development company based in Redmond.

Anil Ganti , Published 10/12/2026 AI Launch Microsoft has officially unveiled the Maia 300 , its latest custom-designed AI accelerator intended to reduce the company's dependence on Nvidia and AMD hardware. It arrives shortly after OpenAI debuted its in-house silicon, Jalapeno.

The chip succeeds the Maia 200, which launched earlier this year. The chip operates with an advanced multi-chiplet design built around TSMC's N2P manufacturing process and will enter production deployment in 2027.

The first Maia chip, the Maia 100 , surfaced in 2023. The Maia 300 operates with a multi-chiplet design comprising a main compute section manufactured using TSMC's advanced N2P (2 nm) process.

Key facts

• The chip — uses: an advanced multi-chiplet design built around TSMC's N2P manufacturing process and will enter production deployment in 2027
• The Maia 300 — uses: a multi-chiplet design comprising a main compute section manufactured using TSMC's advanced N2P (2 nm) process