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Xiaomi XRing O3 brings 3nm processing and LPDDR6 to its next flagships
Xiaomi’s XRing O3 is a 24 billion transistor, TSMC built 3nm smartphone SoC scheduled to debut in China in September 2026. The 10 core all big core design reaches 4.35GHz, while Xiaomi claims 3,945 single core Geekbench 6.5, more than 15,000 multi core and 5.22 million AnTuTu V11 points.
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Key takeaways
- Xiaomi’s XRing O3 is a 24 billion transistor, TSMC built 3nm smartphone SoC scheduled to debut in China in September 2026.
- The 10 core all big core design reaches 4.35GHz, while Xiaomi claims 3,945 single core Geekbench 6.5, more than 15,000 multi core and 5.22 million AnTuTu V11 points.
- The announcement also extends Xiaomi’s XRing strategy beyond phones with the O100 AI accelerator and D100 intelligent driving chip.
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openai.comCreate a landscape editorial hero image for this Studio Global article: What did Xiaomi announce about its XRing O3 flagship smartphone SoC—including its claim to be the first smartphone chip supporting LPDDR6, T. Article summary: Xiaomi presented the XRing O3 as its second flagship in-house phone SoC and a major step toward controlling more of its silicon stack. It is Chinese-designed but fabricated by TSMC—not a domestically manufactured 3 nm ch. Topic tags: general, general web, news. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake numbers
Xiaomi has unveiled the XRing O3, its second flagship smartphone processor designed in-house. Built on TSMC’s reported 3nm N3P process, the chip is headed first for the Xiaomi 18 Fold and Xiaomi Pad 9 Pro Max in China in September 2026. 20
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The most notable announcement is Xiaomi’s claim that the O3 is the first smartphone SoC to support LPDDR6 memory. That claim is widely reported, but the available performance figures are primarily vendor-reported rather than results from independent device testing. 28
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XRing O3 specifications at a glance
- Manufacturing: TSMC 3nm N3P, according to reports
- Transistors: 24 billion
- Die area: 133mm²
- CPU: 10 cores in an all-big-core configuration
- Top CPU clock: 4.35GHz
- Cache: 16MB SLC
- GPU: 16-core G2-Ultra NX
- Memory: LPDDR6 support claimed at up to 10,667Mbps
- Peak memory bandwidth: 113.8GB/s
- First devices: Xiaomi 18 Fold and Xiaomi Pad 9 Pro Max
The 24-billion-transistor count and 133mm² die size represent a substantial flagship design. Reports describe the CPU as two C1-Ultra cores, four C1-Premium cores and four C1-Pro cores, with maximum clock speeds of 4.35GHz, 3.68GHz and 3.15GHz respectively. 17
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Xiaomi’s performance claims
Xiaomi says the O3 reaches 3,945 points in single-core Geekbench 6.5 and more than 15,000 points in multi-core testing. It also reports an AnTuTu V11 score of 5.22 million. Those numbers would place the chip in the highest tier of current smartphone benchmark claims, but they should not be treated as independent, retail-device results until phones using the O3 have been tested under comparable conditions. 18
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Graphics are handled by a 16-core G2-Ultra NX GPU. Xiaomi claims up to an 85% increase in peak graphics performance over the XRing O1, a 182% improvement in ray-tracing performance and up to 64% lower graphics power consumption. These are comparisons with Xiaomi’s previous chip and remain manufacturer-reported figures. 17
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What LPDDR6 support means—and what remains uncertain
Xiaomi positions the O3 as the first smartphone processor with native LPDDR6 support. Reported figures include a data rate of up to 10,667Mbps and 113.8GB/s of memory bandwidth, described as a 48% improvement over the XRing O1. 28
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LPDDR6 can increase the amount of data available to the CPU, GPU and AI hardware, but the headline bandwidth figure does not by itself establish real-world gains in battery life or application performance. The precise memory-bus configuration has also been reported inconsistently, so detailed channel and bit-width claims should be treated cautiously until Xiaomi publishes a complete specification sheet.
Reports further identify China’s CXMT as a key LPDDR6 memory partner for the O3. If confirmed in shipping products, that would give the chip significance beyond Xiaomi: it would represent an early commercial use of Chinese-developed next-generation mobile memory. CXMT would still be competing with established DRAM suppliers such as SK hynix, and production scale, yields and device-level performance remain open questions. 34
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Xiaomi 18 Fold and Pad 9 Pro Max launch plans
The Xiaomi 18 Fold is expected to be the first smartphone with the XRing O3, while the Xiaomi Pad 9 Pro Max is planned as the first tablet to use it. Both products are scheduled to launch in China in September. Xiaomi has said the foldable is available for pre-order, and the Pad 9 Pro Max is being positioned as a professional productivity tablet. 2
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Reuters-reported supply-chain information cited an initial target of roughly 200,000 to 300,000 O3-equipped Xiaomi 18 Fold units. That would make the first rollout strategically important but relatively limited, giving Xiaomi an opportunity to validate its silicon and memory ecosystem before attempting broader flagship volumes. 35
O100 and D100 expand the XRing strategy
Xiaomi’s announcement was broader than a phone processor. The company also introduced two chips aimed at extending its control over AI and automotive computing.
XRing O100
The O100 is a 6nm AI accelerator designed to work alongside the O3 and support Xiaomi’s MiMo large language model. It is intended for high-bandwidth AI workloads rather than general smartphone processing. 43
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XRing D100
The D100 is an in-house chip for intelligent-driving workloads. Xiaomi says it has completed validation and plans commercial vehicle deployment in 2027. Reports describe a 20-core CPU, a 16-core NPU and support for large AI models running locally, although those capabilities should be read as Xiaomi’s announced specifications until products reach the road. 45
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Together, the three chips show Xiaomi trying to build a common silicon strategy across its phone, AI and vehicle businesses rather than treating the O3 as a one-off smartphone component.
How independent is Xiaomi’s chip program?
The XRing O3 is in-house in design, but not fully domestic in manufacturing. Reuters reported that TSMC will produce the chip on a 3nm process, while reports link its LPDDR6 supply to CXMT. That means Xiaomi is gaining control over architecture and product integration without yet controlling every part of the semiconductor supply chain. 33
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The strategic goal is therefore to reduce dependence on Qualcomm and MediaTek, not to eliminate external suppliers immediately. Reuters described the O3 as part of Xiaomi’s effort to strengthen control over key components and its supply chain. 33 Analysts cited by the South China Morning Post placed Xiaomi’s semiconductor progress in the top tier of China’s self-developed mobile SoC industry, but the company still has to demonstrate sustained mass production, software optimization and competitive retail-device performance.
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The practical verdict is measured: the XRing O3 is a serious step in Xiaomi’s silicon ambitions, with an advanced reported process, a large all-big-core CPU, ambitious graphics claims and an early LPDDR6 design win. Its broader importance will depend less on a single benchmark score than on whether Xiaomi can ship the chip reliably, scale its devices and turn in-house silicon into a durable advantage across phones, AI systems and cars.
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What is the short answer to "Xiaomi XRing O3 brings 3nm processing and LPDDR6 to its next flagships"?
Xiaomi’s XRing O3 is a 24 billion transistor, TSMC built 3nm smartphone SoC scheduled to debut in China in September 2026.
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Xiaomi’s XRing O3 is a 24 billion transistor, TSMC built 3nm smartphone SoC scheduled to debut in China in September 2026. The 10 core all big core design reaches 4.35GHz, while Xiaomi claims 3,945 single core Geekbench 6.5, more than 15,000 multi core and 5.22 million AnTuTu V11 points.
What should I do next in practice?
The announcement also extends Xiaomi’s XRing strategy beyond phones with the O100 AI accelerator and D100 intelligent driving chip.
Sources
tech-ish.comXiaomi launches the Xring O3, a 3nm chip built by TSMC for its September foldable - tech-ish
trendforce.com[News] Xiaomi Unveils 3nm XRING O3, Reportedly First Mobile Chip to Support LPDDR6; Debuts on Xiaomi 18 Fold
reuters.comXiaomi launches new Xring chip, partners with TSMC for production, sources say
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