HPE Intel Xeon-Silver 4509Y 2.6 GHz 8-core 125 W Processor

Architecture, cores and frequencies

• Based on Intel 7 technology and aimed at the server/enterprise segment, it is part of the Xeon Scalable 5th Gen family (Sapphire Rapids Refresh / Emerald Rapids) in Silver range.

• It has 8 physical cores and 16 threads with Hyper-Threading, a base frequency of 2.60 GHz and maximum turbo of 4.10 GHz, accompanied by 22.5 MB of L3 cache, allowing it to handle mixed loads (light virtualisation, services, storage, basic analytics) with good response.

Socket, power consumption and scalability

• It uses the FCLGA4677 socket, common in the latest generation Xeon Scalable platform, compatible with modern HPE servers (e.g. Alletra Storage Server 41X0 and other LGA4677 chassis).

• It has a TDP of 125W, which balances compute capacity with power efficiency, and is intended for 2S configurations (up to 2 sockets), allowing dual-CPU servers to be mounted to increase total cores without sacrificing density.

Memory, PCIe and platform

• Supports up to 4TB of DDR5 ECC memory at 4400 MT/s across 8 memory channels, providing high bandwidth for databases, virtual machines and demanding storage/service loads.

• Integrates 80 PCI Express 5.0 lanes, ideal for configurations with multiple NVMe Gen5 controllers, high-speed network cards (100/200 GbE), HBAs or accelerator GPUs.

Advanced technologies and AI

• Includes Intel Advanced Matrix Extensions (AMX) and Intel Deep Learning Boost (DL Boost), which accelerate AI, inference and analytics workloads directly on CPU without requiring a dedicated GPU for certain scenarios.

• It incorporates a comprehensive set of security and reliability technologies, including Intel TDX, Total Memory Encryption (TME), SGX, Crypto Acceleration, Platform Firmware Resilience, Control-Flow Enforcement (CET) and the full Intel Virtualization suite (VT-x, VT-d, EPT), which are critical in multi-tenant and private cloud environments.