Unverified50% confidenceFactExact time
Spark和M4 Pro的内存带宽为273GB/s，Halo略低为256GB/s
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
AMD Ryzen AI Halo实测：x86架构能否撼动英伟达DGX Spark？
bilibili量子菠萝_7/7/2026
Related Claims
UnverifiedDGX Spark的LPDDR5x统一内存带宽约273GB/s，相比数据中心产品使用的HBM3e（单GPU可达8TB/s）有数量级差距77% similarUnverified两台DGX Spark的统一内存合计约256GB74% similarVerifiedM4 Max的内存带宽可达400GB/s以上71% similarVerifiedM4 Max已支持128GB统一内存71% 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70% similar
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