智通财经APP获悉，财通证券发布研报称，PCIe为服务器中的总线标准，数据传输速率不断提升。2025 年8月，PCI-SIG协会宣布正在开发的PCIe 8.0规范将把数据速率提升至256GT/s，并有望于2028年发布。 PCIe的通道配置是决定PCIe设备性能的关键因素，通道数决定PCIe插槽数量&长度的上限，随PCIe通道 数量提高，PCIe插槽需求量有望随之提高。受益于服务器CPU的不断更迭，适配服务器CPU的PCIe代际 &通道数有望逐步提升，并带来相关产业链的增量需求空间。 财通证券主要观点如下： PCIe为服务器中的总线标准，数据传输速率不断提升 风险提示 PCIe技术渗透不及预期，服务器需求不及预期，新一代服务器CPU渗透进度不及预期。 服务器CPU向着适配PCIe 6.0迭代，带来PCIe Retimer芯片增量空间 英特尔第六代服务器CPU已适配支持PCIe 5.0，AMD下一代EPYC霄龙服务器处理器"Venice"有望首次适 配PCIe 6.0，有望于2026年推出；PCIe协议快速发展，传输速率不断提升，另一方面，由于服务器的物 理尺寸受限于工业标准并没有很大的变化，导致整个链路的插损 ...

Core Viewpoint - The article discusses the importance of PCIe Retimer technology in enhancing signal integrity and extending transmission distances in high-speed data applications, particularly in data centers and computing systems. Group 1: PCIe Technology Overview - PCIe technology has evolved significantly, with transmission rates increasing from 2.5 GTps in PCIe 1.0 to 64.0 GTps in PCIe 6.0, and PCIe 7.0 expected to reach 128 GT/s by 2025 [7][10]. - The continuous upgrades in PCIe standards have made it a critical component in modern computing platforms [7]. Group 2: Retimer vs Redriver - Retimer technology is a mixed-signal device that can recover and regenerate data signals, improving signal quality compared to Redriver, which simply amplifies signals [12][16]. - Retimer actively participates in the PCIe protocol, while Redriver does not, leading to differences in their capabilities regarding jitter reduction and signal integrity [22][23]. - Retimer can reset the entire jitter budget and provide diagnostic capabilities, whereas Redriver lacks these features and may amplify noise along with the signal [23][27]. Group 3: Market Insights - The PCIe Retimer market is primarily dominated by companies like Astera Labs, which was the first to mass-produce PCIe 5.0 Retimer chips, and 澜起科技, which has launched PCIe 6.0 Retimer chips [36][37]. - The pricing for PCIe 5.0 Retimer chips is estimated at approximately $36 for X8 and $54 for X16 channels, with market potential calculated based on various server configurations [34][32]. - The ratio of GPUs to Retimers in high-performance servers varies, with examples including a 1:1 ratio in DGX A100 servers and a 1:3 ratio in AWS trn2 servers [32][33].