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smsxyesterday at 9:24 PM1 replyview on HN

Are the numbers in the H100 PCIE vs SXM table swapped for rows 3 onwards? It looks to me like the PCI is showing higher GiB/s numbers, which is counter to expectations. Or am I misunderstanding those benchmarks?


Replies

thundergolfertoday at 5:51 AM

You're not misunderstanding, the PCIe does indeed outperform on the memory bandwidth tests. But it gets dominated on FLOP/s and real-world application bencharks.