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GB200引爆算力革命!国产交换网络迎669亿风口,这些龙头已抢占技术制高点

发布于 2025-08-30

<p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">1. 超节点(Scale Up)成为AI算力最优解</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 背景:</span>大模型训练需求推动十万卡集群成为趋势,Scale Up网络(高带宽域)成为核心增量。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 优势:</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">&nbsp; &nbsp;- 训练效率:</span>GB200较H100训练周期缩短4倍。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">&nbsp; &nbsp;- 推理性价比:</span>GB200推理效率较H100提升30倍,GPU利用率显著提高。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">&nbsp; &nbsp;- 性能突破:</span>GB200单卡算力达H100的2.5倍,支持万亿参数MoE模型。</span></p><p><span leaf="">***</span></p><p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">2. 国内厂商加速布局超节点方案</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 华为:</span></span></p><p><span leaf="">&nbsp; &nbsp;- 推出昇腾384超节点(384 NPU互联),单卡推理吞吐量2300 Tokens/s,性能超越H100/H800,已应用于百度、美团等。</span></p><section style="text-align: center;" nodeleaf=""><img class="rich_pages wxw-img" data-imgfileid="100043844" data-s="300,640" data-src="https://mmbiz.qpic.cn/sz_mmbiz_png/VXjHib6YROwmePic3lBuLB7vyeFuGsPKLLR107eRkZIUXnngLlibvAgP3uE4r8mMibcQmybibXg67cuOPa9DoJwBgVQ/640?wx_fmt=png&amp;from=appmsg" data-type="png" type="block" /></section><p><span leaf=""><br /></span></p><p><span leaf="">&nbsp; &nbsp;- 技术亮点:统一内存地址、高速互联带宽、分钟级故障恢复。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 腾讯:</span></span></p><p><span leaf="">&nbsp; &nbsp;- 主导ETH-X方案(基于以太网RoCE升级),2025年4月首台原型机点亮,训练时间减少30%,推理吞吐量提升40%。</span></p><p><span leaf="">- 阿里:牵头ALS方案,采用UALink协议构建开放生态。</span></p><p><span leaf="">- 其他厂商:浪潮、中兴(智算超节点)、新华三(UniPoD)、华勤技术、超聚变等均推出方案。</span></p><p><span leaf="">***</span></p><p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">3. Scale Up交换网络是核心增量</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 价值量提升:</span></span></p><p><span leaf="">&nbsp; &nbsp;- GB200 NVL72机柜新增9个Switch Tray,交换网络成本显著增加。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 市场规模:</span></span></p><p><span leaf="">&nbsp; &nbsp;- 全球:2027年Scale Up交换机市场达140亿美元(超越InfiniBand+以太网总和)。</span></p><p><span leaf="">&nbsp; &nbsp;- 中国:2028年交换芯片/交换机市场规模预计214亿/669亿元(较2024年翻倍)。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 技术需求:</span>高带宽(数Tb/s)、低时延(&lt;1μs)、支持千卡集群互联。</span></p><p><span leaf="">***</span></p><p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">4. 技术路线竞争</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 私有协议:</span></span></p><p><span leaf="">&nbsp; &nbsp;- 英伟达NVLink(带宽1800GB/s)、华为UB(统一总线架构)。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 开放标准:</span></span></p><p><span leaf="">&nbsp; &nbsp;- UALink:AMD/英特尔牵头,支持1024加速器互联。</span></p><p><span leaf="">&nbsp; &nbsp;- SUE:博通主导,时延仅250ns。</span></p><p><span leaf="">&nbsp; &nbsp;- ETH-X:腾讯推动,基于以太网优化。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 国产替代机遇:</span>盛科通信(25.6T芯片)、中兴通讯(自研7.2T芯片)加速突破。</span></p><p><span leaf="">***</span></p><p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">5. 市场空间与渗透率预测</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 海外:</span>2025-2027年超节点渗透率19%/45%/72%。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 国内:</span>滞后海外1年,2025-2028年渗透率5%/19%/45%/72%。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 中国算力占比:</span>2025年全球14.5%,2028年有望提升至22%(受益H20许可证及国产芯片放量)。</span></p><p><span leaf="">***</span></p><p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">6. 核心受益环节与标的</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 交换芯片:</span></span></p><p><span leaf="">&nbsp; &nbsp;- 国产:盛科通信(25.6T芯片)、中兴通讯。</span></p><p><span leaf="">&nbsp; &nbsp;- 海外:博通(TH Ultra芯片)、ALAB(UALink)。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 交换机厂商:</span></span></p><p><span leaf="">&nbsp; &nbsp;- 中兴通讯(1.6TB/s带宽)、紫光股份(H3C UniPod)、锐捷网络(51.2T CPO交换机)、华勤技术(ETH-X原型机)。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 代工厂商:</span>共进股份(800G交换机)、菲菱科思。</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">- 重点标的估值:</span></span></p><section style="text-align: center;" nodeleaf=""><img class="rich_pages wxw-img" data-imgfileid="100043843" data-s="300,640" data-src="https://mmbiz.qpic.cn/sz_mmbiz_png/VXjHib6YROwmePic3lBuLB7vyeFuGsPKLLlGibJqSia9o4FFrmreSTWZKiareEM49YLR4ZCDbA4dUOhyg5z1gdByLKQ/640?wx_fmt=png&amp;from=appmsg" data-type="png" type="block" /></section><p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">7. 风险提示</span></span></p><p><span leaf="">超节点放量不及预期(技术或供应链问题)。 &nbsp;</span></p><p><span leaf="">云服务商(CSP)资本开支收缩压制需求。 &nbsp;</span></p><p><span leaf="">技术路线变更风险(如UALink/ETH-X竞争)。 &nbsp;</span></p><p><span leaf=""><br /></span></p><p><span leaf=""><span textstyle="" style="font-size: 18px;font-weight: bold;">8. 结论与投资主线</span></span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">核心增量:</span>Scale Up交换网络(芯片/交换机)是国产算力突破关键,2028年中国市场规模669亿元。 &nbsp;</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">投资主线:</span></span></p><p><span leaf="">a. 交换芯片国产化:盛科通信、中兴通讯。&nbsp;</span></p><p><span leaf=""><img class="rich_pages wxw-img" data-imgfileid="100043842" data-ratio="0.7142857142857143" data-s="300,640" data-src="https://mmbiz.qpic.cn/sz_mmbiz_png/VXjHib6YROwmePic3lBuLB7vyeFuGsPKLLPibicglFWaNeOxtyZepw03RAbp54Vmp70UYVBaicS3iaS0d5CicpULdktMw/640?wx_fmt=png&amp;from=appmsg" data-type="png" data-w="959" type="block" /></span></p><p><span leaf="">b. 交换机技术升级:紫光股份、锐捷网络。 &nbsp;</span></p><p><span leaf="">c. 超节点方案落地:华为昇腾、腾讯ETH-X。 &nbsp;</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">行业评级:</span>看好(浙商证券)。 &nbsp;</span></p><p><span leaf=""><span textstyle="" style="font-weight: bold;">数据来源:</span>Lightcounting、IDC、观研天下、公司公告。</span></p><p><span leaf=""><br /></span></p><p><span leaf=""><br /></span></p><section><span leaf=""><br /></span></section><p style="display: none;"><mp-style-type data-value="3"></mp-style-type></p>

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