AWS Releases P5en.48xl Instances with Enhanced GPU Memory and Bandwidth for SageMaker Notebooks

Amazon EC2 P5en.48xl instances with NVIDIA H200 GPUs and Intel Xeon processors offer improved AI training and inference performance on SageMaker notebooks.

By Noah Ellis · Editorial pseudonym · 2026-05-27 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-05-27. Source published: 2026-05-27. Added to this archive: 2026-11-03. This briefing was prepared later from the linked announcement; it was not published on this website on the historical edition date.

P5en instances feature 8 H200 GPUs with 1.7 times GPU memory size and 1.4 times memory bandwidth compared to P5's H100 GPUs, paired with advanced Intel CPUs providing Gen5 PCIe for up to fourfold CPU-GPU bandwidth improvement. This hardware accelerates AI tasks including deep learning, generative AI, and high-performance computing through faster data transfers.

Available in multiple AWS regions, P5en instances leverage Nitro v5 and third-generation Elastic Fabric Adapter (EFA) technology to reduce latency and improve distributed training communication efficiency. AWS provides comprehensive setup instructions for use in JupyterLab and CodeEditor environments on SageMaker Studio.

Source & further reading

SageMaker Notebook Instances now support P5en.48xl instance types ↗

Source published 2026-05-27. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.