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火火兔爸
火火兔爸
·
05-23 09:47
$迈威尔科技(MRVL)$
:Celestial AI 做的是“用光代替电线,在AI芯片之间/芯片内部高速、低功耗传数据”的光子互联(Photonic Fabric)公司,2025年底被 Marvell 收购,专门对标/替代英伟达 NVLink 的铜缆方案 。 下面拆开说(都跟你关心的“英伟达 vs Marvell / AI Scale‑up 网络”直接相关): 1)核心产品:Photonic Fabric™(光子织物) - 本质:把电信号换成光信号,在 AI 芯片(XPU)之间、封装内部、跨机架做互联 。 - 解决什么痛点: - 铜缆(NVLink 现在主力):带宽瓶颈、延迟高、功耗大、密度上不去。 - Photonic Fabric:带宽更高、延迟更低、功耗大幅下降(比铜低约 10 倍)、密度无限提升。 2)技术最关键的一点:“打破海岸线问题” - 传统光互联:只能在芯片边缘做光电转换(像房子只能建在海边)。 - Celestial:光信号可以直接进到芯片内部、任意计算点,跟 3D 封装/HBM 深度集成。 - 结果:带宽密度 ~1.8 Tbps/mm²,比普通 CPO 高 25 倍;延迟到纳秒级。
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火火兔爸
火火兔爸
·
05-22 23:08
$迈威尔科技(MRVL)$
Rubin量产,1.6t光模块的费用要收到手软。
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火火兔爸
火火兔爸
·
05-22 22:04
$迈威尔科技(MRVL)$
哪来的**天天开盘砸[愤怒]
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火火兔爸
火火兔爸
·
05-14
$台积电(TSM)$
台积电多座晶圆厂在建,cowos增速高,值得持有
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火火兔爸
火火兔爸
·
05-12
$奈飞(NFLX)$
来了来了。
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火火兔爸
火火兔爸
·
05-12
$Palantir Technologies Inc.(PLTR)$
OpenAI宣布成立一家新公司,名为“OpenAI Deployment Company(OpenAI部署公司)”,初始投资超40亿美元(约合272亿元人民币),旨在帮助企业构建并部署AI。
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火火兔爸
火火兔爸
·
05-11
$纳微半导体(NVTS)$
数日前,市场上流传着多则关于Vera Rubin设计问题及规格变动的传言,与此前Blackwell GPU服务器发布前夕的情形颇为相似。《经济日报》的最新报道显示,英伟达已完成Vera Rubin量产版本的定型工作,相关传言所指的问题或已得到解决。 报道指出,英伟达将于6月启动试产,随后在7月向微软、谷歌、亚马逊、Meta及甲骨文等北美云服务商开始首批交付。英伟达预计将在即将举行的Computex 2026主题演讲上重点介绍上述合作进展,CEO黄仁勋届时将登台阐述AI领域的最新动态。 供应链全面动员,潜在市场或达万亿美元
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火火兔爸
火火兔爸
·
05-09
$纳微半导体(NVTS)$
除了纳威半导体那里还有价值洼地
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火火兔爸
火火兔爸
·
05-07
$谷歌(GOOG)$
月中几大模型包括谷歌要发布自主代理功能,爱算力需求又要暴增一波
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火火兔爸
火火兔爸
·
05-06
$纳微半导体(NVTS)$
1. 拐点确认:高功率替代消费,营收环比转正 - 2025年Q4起移动快充业务快速出清(低毛利、价格战),2026年Q1占比降至15%以下。 - 高功率(AI/服务器/新能源)占比85%+,毛利率45%–50%,显著高于消费(20%–25%)。 - 英伟达800V HVDC(Rubin/Kyber)订单开始小批量出货,单颗GaN/SiC价值量是消费的5–10倍。 2. 800V进展:从“中标”到“交付”,业绩开始兑现 - 2025年5月:官宣与英伟达4.5亿美元800V HVDC设计中标,分多年交付 。 - 2026年Q1:首批800V GaN/SiC芯片交付,用于Rubin测试机架,驱动AI收入环比+50%。 - 时间线:2026年Q3–Q4 Rubin量产→2027年Ultra全面上量,NVTS为核心GaN供应商(Sidecar电源) 。 3. 产品与竞争:650V/900V GaN+1200V SiC,卡位紧缺环节 - 650V双向GaN:全球唯一量产,用于800V→48V侧挂电源,英伟达认证唯一 。 - 900V GaN:送样中,适配800V母线,替代部分SiC MOSFET(成本更低)。 - 1200V SiC(GeneSiC):用于800V PFC/整流,英飞凌/斯达半导之外的关键供给 。
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href=\"https://laohu8.com/S/MRVL\">$迈威尔科技(MRVL)$ </a> :Celestial AI 做的是“用光代替电线,在AI芯片之间/芯片内部高速、低功耗传数据”的光子互联(Photonic Fabric)公司,2025年底被 Marvell 收购,专门对标/替代英伟达 NVLink 的铜缆方案 。 下面拆开说(都跟你关心的“英伟达 vs Marvell / AI Scale‑up 网络”直接相关): 1)核心产品:Photonic Fabric™(光子织物) - 本质:把电信号换成光信号,在 AI 芯片(XPU)之间、封装内部、跨机架做互联 。 - 解决什么痛点: - 铜缆(NVLink 现在主力):带宽瓶颈、延迟高、功耗大、密度上不去。 - Photonic Fabric:带宽更高、延迟更低、功耗大幅下降(比铜低约 10 倍)、密度无限提升。 2)技术最关键的一点:“打破海岸线问题” - 传统光互联:只能在芯片边缘做光电转换(像房子只能建在海边)。 - Celestial:光信号可以直接进到芯片内部、任意计算点,跟 3D 封装/HBM 深度集成。 - 结果:带宽密度 ~1.8 Tbps/mm²,比普通 CPO 高 25 倍;延迟到纳秒级。","listText":"<a href=\"https://laohu8.com/S/MRVL\">$迈威尔科技(MRVL)$ </a> :Celestial AI 做的是“用光代替电线,在AI芯片之间/芯片内部高速、低功耗传数据”的光子互联(Photonic Fabric)公司,2025年底被 Marvell 收购,专门对标/替代英伟达 NVLink 的铜缆方案 。 下面拆开说(都跟你关心的“英伟达 vs Marvell / AI Scale‑up 网络”直接相关): 1)核心产品:Photonic Fabric™(光子织物) - 本质:把电信号换成光信号,在 AI 芯片(XPU)之间、封装内部、跨机架做互联 。 - 解决什么痛点: - 铜缆(NVLink 现在主力):带宽瓶颈、延迟高、功耗大、密度上不去。 - Photonic Fabric:带宽更高、延迟更低、功耗大幅下降(比铜低约 10 倍)、密度无限提升。 2)技术最关键的一点:“打破海岸线问题” - 传统光互联:只能在芯片边缘做光电转换(像房子只能建在海边)。 - Celestial:光信号可以直接进到芯片内部、任意计算点,跟 3D 封装/HBM 深度集成。 - 结果:带宽密度 ~1.8 Tbps/mm²,比普通 CPO 高 25 倍;延迟到纳秒级。","text":"$迈威尔科技(MRVL)$ :Celestial AI 做的是“用光代替电线,在AI芯片之间/芯片内部高速、低功耗传数据”的光子互联(Photonic Fabric)公司,2025年底被 Marvell 收购,专门对标/替代英伟达 NVLink 的铜缆方案 。 下面拆开说(都跟你关心的“英伟达 vs Marvell / AI Scale‑up 网络”直接相关): 1)核心产品:Photonic Fabric™(光子织物) - 本质:把电信号换成光信号,在 AI 芯片(XPU)之间、封装内部、跨机架做互联 。 - 解决什么痛点: - 铜缆(NVLink 现在主力):带宽瓶颈、延迟高、功耗大、密度上不去。 - Photonic Fabric:带宽更高、延迟更低、功耗大幅下降(比铜低约 10 倍)、密度无限提升。 2)技术最关键的一点:“打破海岸线问题” - 传统光互联:只能在芯片边缘做光电转换(像房子只能建在海边)。 - Celestial:光信号可以直接进到芯片内部、任意计算点,跟 3D 封装/HBM 深度集成。 - 结果:带宽密度 ~1.8 Tbps/mm²,比普通 CPO 高 25 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月中几大模型包括谷歌要发布自主代理功能,爱算力需求又要暴增一波","images":[],"top":1,"highlighted":1,"essential":1,"paper":1,"likeSize":0,"commentSize":0,"repostSize":0,"link":"https://laohu8.com/post/561381355156648","isVote":1,"tweetType":1,"viewCount":487,"authorTweetTopStatus":1,"verified":2,"comments":[],"imageCount":0,"langContent":"CN","totalScore":0},{"id":561262037206384,"gmtCreate":1778058572987,"gmtModify":1778059703257,"author":{"id":"3546249304196282","authorId":"3546249304196282","name":"火火兔爸","avatar":"https://static.tigerbbs.com/1914631c23e50a7645217a36cc9d9598","crmLevel":9,"crmLevelSwitch":1,"followedFlag":false,"authorIdStr":"3546249304196282","idStr":"3546249304196282"},"themes":[],"title":"","htmlText":"<a href=\"https://laohu8.com/S/NVTS\">$纳微半导体(NVTS)$ </a> 1. 拐点确认:高功率替代消费,营收环比转正 - 2025年Q4起移动快充业务快速出清(低毛利、价格战),2026年Q1占比降至15%以下。 - 高功率(AI/服务器/新能源)占比85%+,毛利率45%–50%,显著高于消费(20%–25%)。 - 英伟达800V HVDC(Rubin/Kyber)订单开始小批量出货,单颗GaN/SiC价值量是消费的5–10倍。 2. 800V进展:从“中标”到“交付”,业绩开始兑现 - 2025年5月:官宣与英伟达4.5亿美元800V 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2025年Q4起移动快充业务快速出清(低毛利、价格战),2026年Q1占比降至15%以下。 - 高功率(AI/服务器/新能源)占比85%+,毛利率45%–50%,显著高于消费(20%–25%)。 - 英伟达800V HVDC(Rubin/Kyber)订单开始小批量出货,单颗GaN/SiC价值量是消费的5–10倍。 2. 800V进展:从“中标”到“交付”,业绩开始兑现 - 2025年5月:官宣与英伟达4.5亿美元800V HVDC设计中标,分多年交付 。 - 2026年Q1:首批800V GaN/SiC芯片交付,用于Rubin测试机架,驱动AI收入环比+50%。 - 时间线:2026年Q3–Q4 Rubin量产→2027年Ultra全面上量,NVTS为核心GaN供应商(Sidecar电源) 。 3. 产品与竞争:650V/900V GaN+1200V SiC,卡位紧缺环节 - 650V双向GaN:全球唯一量产,用于800V→48V侧挂电源,英伟达认证唯一 。 - 900V GaN:送样中,适配800V母线,替代部分SiC MOSFET(成本更低)。 - 1200V SiC(GeneSiC):用于800V PFC/整流,英飞凌/斯达半导之外的关键供给 。","images":[],"top":1,"highlighted":1,"essential":1,"paper":1,"likeSize":0,"commentSize":3,"repostSize":1,"link":"https://laohu8.com/post/561262037206384","isVote":1,"tweetType":1,"viewCount":2003,"authorTweetTopStatus":1,"verified":2,"comments":[{"author":{"id":"3518133793038085","authorId":"3518133793038085","name":"Momo军团","avatar":"https://static.laohu8.com/default-avatar.jpg","crmLevel":6,"crmLevelSwitch":0,"authorIdStr":"3518133793038085","idStr":"3518133793038085"},"content":"大佬现在能入吗","text":"大佬现在能入吗","html":"大佬现在能入吗"},{"author":{"id":"4198890607820692","authorId":"4198890607820692","name":"打假哥","avatar":"https://community-static.tradeup.com/news/default-avatar.jpg","crmLevel":9,"crmLevelSwitch":0,"authorIdStr":"4198890607820692","idStr":"4198890607820692"},"content":"哪里说了英伟达有4.5亿订单?","text":"哪里说了英伟达有4.5亿订单?","html":"哪里说了英伟达有4.5亿订单?"}],"imageCount":0,"langContent":"CN","totalScore":0}],"defaultTab":"following","isTTM":false}