Xiaomi Unveils 3nm XRING O3: World's First Mobile Processor with LPDDR6 Support for Xiaomi 18 Fold
Xiaomi introduces the 3nm XRING O3, the world's first mobile processor supporting LPDDR6 memory with 113.8GB/s bandwidth, debuting on the Xiaomi 18 Fold.
On August 24, 2026, Xiaomi officially unveiled its flagship in-house application processor, the XRING O3. Manufactured by TSMC on an advanced 3nm node, the XRING O3 is the world's first commercial mobile processor engineered with native LPDDR6 memory support. Packing 24 billion transistors across a 133mm² die, the processor delivers a record 113.8GB/s memory bandwidth and will make its commercial debut powering the flagship Xiaomi 18 Fold smartphone in September.
Breaking the Mobile Memory Bandwidth Barrier with LPDDR6
As on-device multimodal artificial intelligence and real-time generative models demand unprecedented data transfer rates, memory bandwidth has replaced raw compute as the primary bottleneck in mobile computing. The XRING O3 addresses this by integrating next-generation LPDDR6 memory controllers operating at speeds up to 10,667Mbps, representing a 48% bandwidth surge over predecessor silicon to accelerate local 14B-parameter LLM execution without battery penalty.
Key Specifications & Hardware Architecture
- 3nm Advanced TSMC Node: Transistor count expands by 26% to 24 billion across a 133mm² silicon die for superior thermal efficiency.
- World-First LPDDR6 Integration: Reaches data transfer speeds of 10,667Mbps and 113.8GB/s memory bandwidth to eliminate mobile AI bottlenecks.
- Debut on Xiaomi 18 Fold: Confirmed to launch commercially in September as the processing core of the next-generation Xiaomi 18 Fold and Xiaomi Pad 9 Pro Max.
- Tri-Chip Silicon Expansion: Accompanied by the XRING O100 3D-stacked 6nm AI accelerator (330 tokens/s) and the XRING D100 3nm autonomous driving processor.
Xiaomi's Maturing Vertical Silicon Independence
Backed by more than 20 billion yuan ($3 billion) in semiconductor R&D and a 3,000-person engineering division, the launch of the XRING O3 establishes Xiaomi alongside Apple and Huawei in achieving full-stack vertical integration across custom hardware, silicon, and operating system software.
Processor Specification Profile
| Feature | Details |
|---|---|
| Developer | Xiaomi Corporation |
| Foundry / Process Node | TSMC 3-Nanometer (3nm) |
| Transistor Count / Die Size | 24 Billion Transistors / 133mm² |
| Memory Standard / Bandwidth | LPDDR6 (10,667Mbps) / 113.8GB/s |
| Debut Hardware | Xiaomi 18 Fold & Xiaomi Pad 9 Pro Max (September 2026) |