PCIe 7.0
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PCIe 8草案发布,带宽高达1 TB/s
半导体行业观察· 2025-09-22 01:02
Core Viewpoint - The PCI-SIG is developing the PCIe 8.0 specification, which aims to continue the trend of doubling total bandwidth with each generation, potentially offering up to 1 TB/s bidirectional transfer rates in the future [2][5][9]. Group 1: PCIe 8.0 Development - PCIe 8.0 is currently in draft version 0.3, with expectations to provide eight times the bandwidth of current high-end PC components [2][4]. - The specification aims to maintain the trend of doubling bandwidth seen from PCIe 1.0 to 7.0, with PCIe 8.0 expected to achieve 256 GT/s [4][5]. - The development of PCIe 8.0 includes exploring fiber connector technology to achieve faster speeds while ensuring low latency and reliability [7][8]. Group 2: Bandwidth and Performance - Current consumer PCs typically use PCIe 3.0 or 4.0, supporting 8 GT/s and 16 GT/s respectively, with maximum bandwidths of 32 GB/s and 64 GB/s [4]. - PCIe 5.0 supports 32 GT/s, achieving up to 128 GB/s, while PCIe 6.0 can reach 64 GT/s and 256 GB/s [4]. - PCIe 7.0 doubles these figures again, reaching 128 GT/s and 512 GB/s, with compliance plans set for 2028 [4][5]. Group 3: Applications and Importance - PCIe 8.0 is expected to play a crucial role in supporting demanding workloads in artificial intelligence, machine learning, edge computing, quantum computing, and large-scale data centers [9].
Strength Seen in Rambus (RMBS): Can Its 10.1% Jump Turn into More Strength?
ZACKS· 2025-09-19 12:11
Company Overview - Rambus (RMBS) shares increased by 10.1% to close at $107.38, with notable trading volume compared to typical sessions, and a total gain of 40% over the past four weeks [1] - The company is experiencing optimism due to its strengths in DDR5, expanding companion chips, PMICs, AI-driven demand for HBM4 and PCIe 7.0, MRDIMM opportunities, client PC expansion, strong silicon IP momentum, and robust cash generation [2] Financial Performance - Rambus is expected to report quarterly earnings of $0.62 per share, reflecting a year-over-year increase of 24% [2] - Revenue projections for Rambus stand at $175 million, which is a 19.2% increase from the same quarter last year [2] Market Trends - The consensus EPS estimate for Rambus has remained unchanged over the last 30 days, indicating that stock price movements may not sustain without trends in earnings estimate revisions [4] - The stock currently holds a Zacks Rank of 3 (Hold), suggesting a neutral outlook [4] Industry Context - Rambus operates within the Zacks Electronics - Semiconductors industry, where Navitas Semiconductor Corporation (NVTS) also resides, having closed 4.2% higher at $6.73 [4] - Navitas Semiconductor's consensus EPS estimate has remained unchanged at -$0.05, representing a 16.7% improvement from the previous year [5]
PCIe,进入光时代
半导体芯闻· 2025-06-30 10:07
Core Viewpoint - The development of Artificial Intelligence (AI) has increased the demand for faster data transmission, which is reflected in the upcoming release of PCI Express 7.0, set for June 11, 2025, targeting data-driven applications such as AI/machine learning, 800G Ethernet, cloud computing, and quantum computing [1][4]. Group 1: PCIe 7.0 Features - PCIe 7.0 will feature a data rate of 128.0G transfers per second (GT/s) and a bidirectional rate of up to 512GB/s in a 16-lane configuration, utilizing PAM4 signaling and Flit-based encoding for improved power efficiency [1][4]. - The new version maintains backward compatibility with previous PCIe generations and continues the tradition of doubling I/O bandwidth every three years [1][4]. Group 2: Market Drivers and Applications - The primary driver for PCIe 7.0 improvements is to meet the bandwidth demands of large-scale data centers, high-performance computing (HPC), and other data-intensive markets adopting AI [4][5]. - The automotive sector is also a focus for PCI-SIG, with expectations that the industry will shift towards PCIe due to performance needs [5]. Group 3: Optical Solutions and Compliance - PCI-SIG has introduced the industry's first standard-based "optical-aware retimer" solution, which standardizes optical PCIe architecture for easier migration to existing PCIe 6.0 designs and devices [5]. - Compliance testing for PCIe 6.0 is ongoing, with a goal to have an integrator list by the end of 2025, while PCIe 8.0 is also in development [6].
PCIe 7.0 演示:1 米处,128 GT/s
半导体行业观察· 2025-06-01 00:46
Genesis 的设计注重结构可靠性,保持最小的占用空间,使其能够适应密集的服务器,并支持长达 1000 毫米的电缆长度,且不会影响信号完整性。为此,它采用 29 AWG 低损耗微波同轴电缆,以 实现最佳的高频性能、信号完整性和可靠性。 Molex 的 Genesis 路线图包括计划于 2025 年 5 月推出的 x8 连接器、计划于 2025 年 7 月推出的 x16 型号以及未来推出的 x20 版本。Genesis 设计支持最多 74 个引脚的 x8 配置,而更大的 x16 和 x20 版本计划分别容纳 124 个和 148 个引脚。Molex 计划提供多种方向选项以适应不同的系统 布局,包括直角、斜角出口和垂直出口设计。连接器的宽度随通道数而变化,x8 为 28 毫米,x16 为 47 毫米,x20 为 57 毫米。连接器的高度为 8.7 毫米,深度为 13.2 毫米,以满足密集系统设 计的需求。 如果您希望可以时常见面,欢迎标星收藏哦~ 来源:内容来自Source:标题tomshardware 。 支持 128 GT/s 传输速率的 PCIe 7.0 互连系统尚需数年时间才能问世。然而,像 Molex ...