寒武纪思元370

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最新消息:阿里巴巴三步走战略替代英伟达的,追加寒武纪GPU至15万片
是说芯语· 2025-08-30 07:46
华尔街日报最新消息: 阿里巴巴正在开发的新一代AI芯片聚焦多功能推理场景,核心目标是填补英伟达H20退出后的市场空 白。 该芯片采用国产14nm或更先进制程(由长江存储等本土代工厂支持),通过异构计算架构集成高密度 计算单元和大容量内存(预计LPDDR5X带宽超1TB/s),单卡算力目标达到300-400TOPS(INT8),与 H20(约300TOPS)基本持平。 与英伟达H20相比,阿里芯片的核心优势在于全场景兼容性:不仅支持FP8/FP16混合精度计算,还通过 动态指令翻译层实现与CUDA生态的无缝对接,工程师可直接复用现有代码,迁移成本降低70%以上。 例如,阿里云已在通义千问大模型推理环节部署寒武纪思元370芯片,通过MagicMind工具链实现模型 转换效率提升3倍。 至128GB,减少对外部存储的依赖。 为确保芯片量产,阿里采用双代工厂备份策略: 成熟制程:中芯国际14nm产线承担基础芯片生产,良率稳定在95%以上,月产能达5万片。 先进制程:与华虹半导体合作开发7nm工艺,预计2026年量产,目标算力突破500TOPS,能效比提升 30%。 阿里的芯片的三步走战略: 面对H20断供,阿里紧急追 ...
关于小米造芯这件事,我们只说三个点
3 6 Ke· 2025-05-21 00:20
Core Viewpoint - Xiaomi is advancing its chip development with the upcoming launch of the "玄戒O1" chip, which will utilize second-generation 3nm process technology, marking a significant step in its self-developed chip journey [4][22]. Group 1: Chip Development History - Xiaomi began its chip development journey with the "澎湃S1" in 2014 and transitioned to various self-developed "小芯片" until 2017 [1]. - In 2021, Xiaomi re-initiated the development of a SoC "大芯片" [4]. Group 2: Industry Reactions - The announcement of the "玄戒O1" has sparked widespread discussion and analysis across social media platforms, with various opinions on its performance and pricing emerging [6]. - Some skepticism exists regarding the authenticity of the chip's self-developed status, particularly concerning its architecture and components [9][12]. Group 3: Architecture and Self-Development Debate - Critics argue that the use of ARM architecture in the "玄戒O1" undermines its classification as a self-developed chip [9]. - The article counters that many successful chip manufacturers, including MediaTek and Unisoc, also utilize public ARM architectures, suggesting that using such architectures does not negate self-development claims [11][12]. Group 4: Advanced Process Technology - The "玄戒O1" will employ advanced 3nm process technology, which has raised questions about why Xiaomi can access this technology while others cannot [22][25]. - Current U.S. regulations do impose restrictions on chip manufacturing, but they are conditional and do not outright ban the use of advanced processes for certain chip types [26][28]. Group 5: Investment and R&D Costs - Xiaomi's total investment in chip development is reported to be 135 billion yuan, which raises questions when compared to OPPO's previous 500 billion yuan investment that did not yield similar results [33][35]. - The article highlights that the cost of developing advanced chips can vary significantly, and the reported R&D costs of other companies, such as MediaTek, suggest that Xiaomi's investment may be sufficient for successful chip development [37][39].