Figures

NVIDIA H100 (SXM) GPU memory: recorded figures
Metric Value Evidence Basis Method Source
Memory bandwidth memory 3.35 TB/s Confirmed Theoretical Theoretical peak Stated by the vendor Peak transfer rate between the accelerator's memory and its processing units. A bus maximum like every other bandwidth figure here, and directly comparable with them: same metric, same scope, same method. That makes it the one place in this record where a multiplier across the whole span of the catalog is legitimate.
Memory capacity whole-system 80 GiB Confirmed Vendor-rated Design capacity Stated by the vendor Memory on the SXM module. The accelerator has no other, and no host memory is included. NVIDIA writes "80GB", read as 80 GiB in the binary convention this catalog applies to every memory capacity. Recorded at whole-system scope because it is all the memory this device has, but it answers a narrower question than a computer's: work has to be copied here from a host before the accelerator can touch it.

Derived comparisons

3 350 000 000 000 B/s

Formula
a + b + … sum v1
Inputs
  • nvidia-h100-memory Memory bandwidth: 3.35 TB/s
Rounding
none , 13 significant digits

Adds 1 memory-bandwidth figure obtained by theoretical-peak. Nothing in the catalog is left out of it. A total is only as trustworthy as the decision about what belongs in it, so both the terms and the exclusions are named records.

70×

Formula
a ÷ b ratio v1
Inputs
  • nvidia-h100-memory Memory bandwidth: 3.35 TB/s
  • ps2-gs-edram Memory bandwidth: 48 GB/s
Rounding
half-up , 2 significant digits

Compares memory-bandwidth at memory scope, obtained by theoretical-peak. Valid only within this comparability group, and reported to 2 significant digits — the precision of the least precise input. At least one input is a theoretical peak, which is an upper bound rather than an achieved result.

Fitted to

Editorial notes

No memory type is recorded: NVIDIA's specification table names the capacity and the bandwidth and not the technology, and naming it here would be a fact from somewhere else.

Sources

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