小米玄戒 O3 芯片正式发布，首款 AI 旗舰 SoC 突破 500 万分

小米在 8 月 24 日的玄戒芯片技术沟通会上正式发布了首款 AI 旗舰 SoC 玄戒 O323。REDMI 产品经理胡馨心此前在微博意外爆料了这一芯片家族的全新成员命名1。

玄戒 O3 采用 3nm 工艺，拥有 240 亿晶体管2，芯片面积 133mm²，规模较前代增长 26%2。该芯片以卓越的性能表现引人瞩目，安兔兔跑分高达 522 万分3，成为首个突破 500 万分的旗舰 SoC3，多核跑分也首次突破 15000 分，性能提升达 60%3。

在核心架构方面，玄戒 O3 采用十核全大核设计，包括 6 个超大核心和 4 个大核心，最高主频 4.35GHz3。GPU 首发 16 核 G2-Ultra NX 图形处理器，性能提升 85%，功耗降低 64%3。LPDDR6 内存带宽达 113.8GB/s，相比玄戒 O1 提升 48%3。NPU 拥有 200TOPS 张量算力和 3.13TFLOPS 向量算力，端侧 AI 性能提升 45%3。

在成像能力上，玄戒 O3 支持单摄最大 4.32 亿像素、三摄最大 64M+64M+50M 的配置3，并支持 4K60FPS AINR 夜景视频3。该芯片历时 459 天开发3。

Xiaomi has officially launched the Xuanwu O3, its inaugural AI flagship system-on-chip (SoC), which has achieved unprecedented performance metrics for the company's self-developed processor family 3. The chip was revealed during Xiaomi's Xuanwu technology communication conference on August 24, 2024 123, marking a significant milestone as it became the first flagship SoC to surpass 5 million points in AnTuTu benchmarking, reaching 5.228 million points 3.

The Xuanwu O3 features 24 billion transistors and is manufactured using a 3nm process, with a die size of 133 square millimeters representing a 26% increase over its predecessor 2. The processor incorporates a ten-core all-big-core CPU architecture comprising six ultra-large cores and four large cores operating at a maximum frequency of 4.35 GHz, enabling multi-core scores to break through 15,000 points for the first time with a 60% performance boost 3. The GPU debuts a 16-core G2-Ultra NX design, delivering an 85% performance improvement while reducing power consumption by 64% compared to previous iterations 3.

Supporting LPDDR6 memory with a bandwidth of 113.8 GB/s—a 48% increase relative to the Xuanwu O1—the O3 integrates an NPU architecture specifically optimized for on-device large language models 3. The neural processing unit provides 200 TOPS of tensor computing power and 3.13 TFLOPS of vector computing capability, resulting in a 45% improvement in edge AI performance 3. The chip also supports single-camera imaging up to 432 million pixels and triple-camera configurations reaching 64M+64M+50M specifications, with 4K 60FPS AI noise reduction for night video recording 3. The development of the Xuanwu O3 required 459 days of engineering effort 3.