Microsoft unveiled its custom Azure Maia 300 accelerator via a blog post on October 12, 2026, announced by Scott Guthrie. Based on vendor-reported specs, the chip delivers 6.9 PFLOPS of dense FP8 compute, above NVIDIA's B200 at 4.5 PFLOPS, matches the B300's 288GB of HBM4 memory, and offers 18 TB/s of bandwidth at 950 watts. Microsoft claims 40% more tokens per megawatt than leading GPU systems, with production scheduled for 2027 and multi-gigawatt deployment targets, though none of these benchmarks has been independently verified. Microsoft is pitching the chip to external customers including Anthropic, but no confirmed deployments have been announced. Evercore ISI estimates Maia could represent about 10% of Microsoft's AI chip spending by the first quarter of 2027, and Microsoft shares rose 1.07% intraday while NVIDIA fell 1.22%.
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Related tickers and likely impact
MSFT
▲ Likely positiveMicrosoft
Relevance: medium
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Systems Software |
| Market cap | $4.0T |
| Close on 10/09/2026 | 535.07 |
| Change that session | +2.38% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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