Unverified60% confidenceFactExact time
GB300 是 NVIDIA Blackwell Ultra 系列旗舰数据中心芯片，集成 HBM3e 内存，单卡容量达288GB
2
Sources
60%
Confidence
Long-term
Relevance
7/10/2026
First Seen
Sources
Grok 4.5深度实测：编程能力媲美顶级模型，成本仅零头
youtubeTheo - t3․gg7/9/2026
Related Claims
Unverified英伟达GB300是Blackwell架构旗舰计算卡，单卡HBM3e显存高达288GB83% similarUnverifiedGB300 集成 HBM3e 高带宽内存，单卡容量高达288GB，内存带宽超过10TB/s79% similarUnverified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78% similarVerifiedNVIDIA A100单卡拥有80GB HBM2e显存和312 TFLOPS的FP16算力73% similarVerifiedNVIDIA H100拥有3.35TB/s的HBM3带宽，单卡售价超过25万元人民币70% similar
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