HBF(高带宽闪存)
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推理芯片的四种方案,David Patterson撰文
半导体行业观察· 2026-01-19 01:54
公众号记得加星标⭐️,第一时间看推送不会错过。 编者按 日前,由Xiaoyu Ma和David Patterson联合署名的文章《Challenges and Research Directions for Large Language Model Inference Hardware》正式发布。这篇文章被发布以后,引起了广 泛关注。文章中,作者围绕LLM推理芯片的挑战以及解决方案,给出了建议。 以下为文章正文: 大型语言模型 (LLM) 推理难度很高。底层 Transformer 模型的自回归解码阶段使得 LLM 推理与训 练有着本质区别。受近期人工智能趋势的影响,主要挑战在于内存和互连,而非计算能力。 为了应对这些挑战,我们重点介绍了四个架构研究方向:高带宽闪存,可提供 10 倍内存容量,带宽 堪比 HBM;近内存处理和 3D 内存逻辑堆叠,可实现高内存带宽;以及低延迟互连,可加速通信。 虽然我们的研究重点是数据中心人工智能,但我们也探讨了这些方案在移动设备上的应用。 引言 当一位作者于 1976 年开始其职业生涯时,计算机体系结构会议上约 40% 的论文来自业界。到 2025 年 ISCA 会议时,这一 ...
AI泡沫疑云下,投资机会还剩多少?
Guo Ji Jin Rong Bao· 2025-11-25 12:29
Group 1 - The core viewpoint of the articles emphasizes the resurgence of AI concept stocks in the A-share market, driven by a focus on computing power and applications, particularly in storage solutions like HBM and HBF, which are essential for GPU and AI server upgrades [1] - The investment approach for AI differs from that of the internet, with AI focusing on "to Task" models that enhance task efficiency through multi-model collaboration, contrasting with the internet's "to B" and "to C" models that prioritize user engagement and traffic [1] - The long-term investment strategies highlighted include trend investing, which capitalizes on short-term trends, and value investing, which focuses on the long-term growth of companies [1] Group 2 - For ordinary investors, a shift in mindset and investment methods is crucial, moving away from trend guessing and towards a value investment perspective that emphasizes long-term company growth [2] - A unique value investment formula proposed is: Value Investment ≈ Good Asset + Good Price, indicating that both components are essential for successful investment [2]
存储缺货,30年来首次
半导体芯闻· 2025-11-07 10:24
Core Insights - The storage module industry is experiencing a significant shortage driven by AI demand, with NAND Flash prices increasing by approximately 50% this month, and DRAM prices for DDR4 and DDR5 also rising [2] - NAND Flash applications in AI have surged recently, leading to a shift in supplier capacity towards AI applications, with expectations of a substantial market opportunity due to HDD shortages [2] - The major DRAM manufacturers have no plans to increase DDR4 production, anticipating a gradual exit from the DDR4 market by 2026, which limits supply and drives prices up [2] Group 1: Company Performance - In Q3, the company reported revenues of 4.109 billion, a quarter-over-quarter increase of 27.2% and a year-over-year increase of 63.2%, with a net profit of 1.511 billion, reflecting a quarter-over-quarter increase of 259% and a year-over-year increase of 334% [3] - The company is primarily focused on industrial control, with DDR4 still dominating product shipments, while expecting an increase in DDR5 shipments as customers transition [2] Group 2: Market Trends - SanDisk predicts that the NAND Flash supply shortage will persist until at least the end of 2026, with indications that the tight supply situation may extend into 2027 [4] - The demand for NAND Flash is driven by long-term trends, capital investments, and industry transitions, with data centers expected to become the largest segment for NAND Flash by 2026 [4] - SanDisk's wafer fabs are operating at full capacity to replenish significantly reduced inventories, and the company is optimistic about the long-term growth of the data center market [4][6] Group 3: Future Outlook - SanDisk's revenue guidance for Q2 FY2026 is projected between 2.55 billion and 2.65 billion, exceeding market expectations, with adjusted earnings per share forecasted between 3.00 and 3.40 [6] - The company reported a 26% quarter-over-quarter growth in data center revenue, with ongoing collaborations with major data center clients [7] - BiCS8 technology is expected to dominate production by the end of FY2026, currently accounting for 15% of total shipments [7]