Unverified70% confidenceFactExact time
NVIDIA's GB300 is the flagship of the Blackwell Ultra architecture, with a single chip featuring 288 GB of HBM3e memory capacity and total memory bandwidth exceeding 16 TB/s, an improvement of nearly 5× over the H100's 3.35 TB/s.
2
Sources
70%
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
VerifiedThe GB300 integrates HBM3e high-bandwidth memory, with a single-card capacity of up to 288GB and memory bandwidth exceeding 10TB/s84% similarUnverified英伟达GB300是Blackwell架构旗舰计算卡，单卡HBM3e显存高达288GB84% similarVerifiedThe HBM3 memory used by NVIDIA's H100 has a bandwidth of up to 3.35 TB/s.79% similarVerifiedThe GB300 is NVIDIA's flagship data center chip in the Blackwell Ultra series, integrating HBM3e memory with a single-card capacity of 288 GB.78% 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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