Unverified50% confidenceFactExact time
英伟达GB300为Blackwell Ultra架构旗舰，单颗HBM3e显存容量达288GB，总显存带宽超过16TB/s，相比H100的3.35TB/s提升近5倍
1
Sources
50%
Confidence
Long-term
Relevance
7/24/2026
First Seen
Sources
Grok 4.5深度解析：专为编程与Agent而生的工程大脑
bilibili傻狗与AI7/9/2026
Related Claims
UnverifiedGB300 集成 HBM3e 高带宽内存，单卡容量高达288GB，内存带宽超过10TB/s84% similarUnverified英伟达GB300是Blackwell架构旗舰计算卡，单卡HBM3e显存高达288GB84% similarVerified英伟达H100采用的HBM3内存带宽高达3.35TB/s79% similarUnverifiedGB300 是 NVIDIA Blackwell Ultra 系列旗舰数据中心芯片，集成 HBM3e 内存，单卡容量达288GB78% similarUnverifiedNVIDIA H100搭载的HBM3提供约3.35TB/s内存带宽，而DDR6预计单通道最高带宽约256GB/s75% similar
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