英伟达年终核弹！全新B300为o1推理大模型打造，RTX5090也曝光了_老虎社区_美港股上老虎

英伟达年终核弹！全新B300为o1推理大模型打造，RTX5090也曝光了

量子位2024-12-26

英伟达老黄，成了今年的圣诞老黄。AI芯片大礼包刚刚曝光：GPU新核弹B300，以及附带CPU的超级芯片GB300。高算力，在产品层面上相比B200在FLOPS上提高50%大显存，从192GB提升到288GB，也是提高了50%。△Grok AI绘图包含72块GB300的“新一代计算单元”GB300 NVL72，更是被评价为“能让OpenAI o1/o3推理大模型的思维链长度，在高batch size...

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ruan_7128
·2024-12-26
英伟达的芯片已经落后了，还吹嘘“高算力”。
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- ruan_7128:
  老黄如今是当红炸子鸡 [开心]
  2024-12-27
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- 三千旗得圣:
  看到评论区的发言我就安心了，就老黄天天隔着加功率加显存和核心数量，消费级的显卡都已经成为显砖了，甚至主板还得加固定件才能好好插稳显卡，还有人继续吹老黄的提升
  2024-12-27
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- KEINS:
  是的，不如华为！我已经卖房全仓赛丽斯了，你呢，
  2024-12-26
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enjoylife168
·2024-12-26
用AI研发AI
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Board，也就包括两颗GPU、一颗CPU、CPU的内存等所有组件都集成在一块PCB版上。△GB200概念图GB300系列将只提供参考板（Reference Board），包括两颗B300 GPU、一颗Grace CPU、HMC（Hybrid Memory Cube），LPCAMM内存模块等组件将由客户自行采购。这给供应链上的OEM和ODM制造商带来了新的机会。为推理大模型打造显存的升级对OpenAI o1/o3一类的推理大模型至关重要，因为推理思维链长度会增加KVCache，影响batch size和延迟。以一个GB300 NVL72“计算单元”为单位考虑时，它使72个GPU能够以极低的延迟处理相同的问题，并共享显存。在此基础上从GB200升级到GB300，还可以带来许多好处：每个思维链的延迟更低实现更长的思维链降低推理成本处理同一问题时，可以搜索更多样本，最终提高模型能力为了解释这些提升，SemiAnalysis举了个更为直观的例子。下图是在不同批处理大小下，使用H100和H200两种GPU处理长序列时，Llama 3.1 405B在FP8精度下的处理速度。输入设置为1000个token、输出19000个token，由此模拟OpenAI o1和o3模型中的思维链。从H100升级到H200，有两个显著改进。一是在所有可比较的batch size中，H200的内存带宽更大（H200 4.8TB/s，H100 3.35TB/s），从而使得处理效率普遍提高了43%。二是H200可运行更高的batch size，这使得其每秒可以生成的token数量增加了3倍，相应地，成本也减少了约3倍。内存增加所带来的效益远不止表面上的这些。众所周知，推理模型响应时间一般更长，显著缩短推理时间可以提高用户体验和使用频率。而且内存升级实现3倍性能提升，成本减少3倍，这一提升速度也远超摩尔定律。除此之外，SemiAnalysis还分析观察到，能力更强和具有明显差异化的模型能收取更高的溢价——前沿模型毛利率超70%，而还在与开源模型竞争的次一级模型毛利率不足20%。当然，英伟达并不是唯一一家能增加内存的芯片公司，但奈何英伟达还有杀手锏NVLink。One More Thing英伟达消费级显卡方面，RTX5090的PCB板也首次曝光了～就在昨天，一张RTX 5090 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