AGAnchorGPU

H100 SXM vs H100 PCIe

H100 SXM vs H100 PCIe: specs and rental cost

Compare memory, node configurations, and fixed weekly and monthly cost before choosing between NVIDIA H100 SXM and NVIDIA H100 PCIe.

Decision summary

H100 SXM provides the same amount of VRAM per card. H100 PCIe costs $160 less per 30-day term . Choose based on whether memory headroom or lower fixed cost is the binding constraint.

NVIDIA

H100 SXM

training · high-throughput inference

$1,352/ 30 days
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VS
NVIDIA

H100 PCIe

fine-tuning · inference

$1,192/ 30 days
View GPU
SpecificationH100 SXMH100 PCIe
ArchitectureHopperHopper
VRAM80 GB HBM380 GB HBM2e
Host resources / card24 vCPU · 192 GB RAM20 vCPU · 160 GB RAM
Local NVMe / card3.84 TB2 TB
7-day price / card$380$336
30-day price / card$1,352$1,192
4-GPU node / 30 days$4,975$4,387
Catalog quantity690 cards510 cards

Workload decision · updated 2026-09-04

H100 SXM vs H100 PCIe: same capacity, different system design

Both models use Hopper and offer 80 GB, but the memory subsystem and host integration differ. The useful question is whether your workload needs a connected multi-GPU platform or can run on one card or independent replicas.

01

Choose H100 SXM when…

Choose H100 SXM for a communication-sensitive model split across several GPUs, provided that the allocation actually exposes the expected HGX fabric. Memory-bandwidth-sensitive work is another reason to test SXM against PCIe.

02

Choose H100 PCIe when…

Choose H100 PCIe when one GPU is sufficient, workers operate independently, or a lower-priced Hopper configuration meets the measured latency and throughput requirement. Do not assume that multiple PCIe cards create an all-to-all GPU fabric.

Manufacturer specificationH100 SXMH100 PCIe
ArchitectureHopperHopper
Memory80 GB HBM380 GB HBM2e
Published memory bandwidth3.35 TB/s2.0 TB/s
Form factorSXMDual-slot PCIe Gen5
Reference system connectionHGX NVLink/NVSwitch platformsPCIe; optional bridge to an adjacent H100

Published accelerator specifications, not a measurement of AnchorGPU infrastructure. Host topology and delivered fabric must be confirmed separately.

What to verify in a pilot

  • Confirm which requested GPUs share the same CPU and NUMA domain.
  • Ask which pairs have NVLink and whether the machine contains NVSwitch, a two-card bridge or PCIe-only communication.
  • Verify the GPU, network adapter and local storage placement for your communication pattern.
  • Check driver, CUDA, framework and collective-library versions as one environment.

Bottom line. PCIe is the lower-cost Hopper choice for independent work. SXM is a candidate for closely coupled workloads only when the delivered topology supports the intended strategy.

Catalog cost difference: $44 per 7 days and $160 per 30 days. Prices are read from the same catalog as the configurator.

Sources & method

Manufacturer specifications inform the comparison. Recommendations are workload-dependent; no AnchorGPU performance benchmark is claimed.

NVIDIA H100 specificationsNVIDIA H100 PCIe product brief