Intel Xeon Silver 4509Y – Detailed Specifications & Overview
The Intel Xeon Silver 4509Y is a server-grade processor belonging to Intel’s 5th Generation Xeon Scalable family (formerly “Sapphire Rapids”). Designed for modern data center environments, this CPU offers a balanced mix of core count, performance, efficiency, and next-gen I/O connectivity.
Key Specifications
| Specification | Details |
|---|---|
| Product Name / SKU | Intel Xeon Silver 4509Y |
| Code Name / Architecture | 5th Gen Xeon Scalable (“Sapphire Rapids”) |
| Cores / Threads | 8 cores / 16 threads |
| Base Clock | 2.60 GHz |
| Max Turbo Frequency | Up to 4.10 GHz |
| L3 Cache | 22.5 MB |
| Thermal Design Power (TDP) | 125 W |
| Fabrication Process | Intel 7 (10 nm) |
| Memory Support | 8-channel DDR5, up to 4400 MT/s |
| Maximum Memory Capacity | Up to 4 TB (platform dependent) |
| UPI (Interconnect) | 2 × 16 GT/s ➝ supports multi-socket systems |
| PCIe Support | PCIe Gen 5, up to 80 lanes according to TechPowerUp |
| Package / Socket | FCLGA 4677 |
Architectural & Feature Highlights
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Hybrid Performance Profiles
Thanks to Intel Speed Select Technology (SST-PP), the 4509Y offers different performance profiles: full 8-core mode at 2.6 GHz / 125 W, or lower-power modes at reduced frequency / TDP. -
Advanced Acceleration
Supports AVX-512, AMX, and other high-performance instruction sets, enabling machine learning, real-time analytics, and vector compute tasks. -
Enterprise Security & Reliability
Built-in features include hardware virtualization (VT-x, VT-d), ECC memory support, and other enterprise-grade technologies to enhance security and uptime.
Performance Highlights
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Optimized for Data Center Efficiency
With 8 cores and a moderate TDP of 125 W, the 4509Y achieves a solid balance between performance and power consumption, ideal for efficient server deployments. -
High Memory Throughput
The 8-channel DDR5 interface (up to 4400 MT/s) provides excellent memory bandwidth, making it suitable for in-memory databases, cache-heavy workloads, or real-time analytics. -
Scalability
Dual UPI links allow multi-socket configurations, making this CPU viable for scalable enterprise servers. -
Abundant I/O
With support for up to 80 PCIe Gen 5 lanes, the CPU enables high-bandwidth I/O for NVMe storage, networking, and accelerator cards.
Ideal Application Scenarios
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Virtualization & Cloud Servers
Perfect for hypervisor-based environments (e.g., VMware, KVM, Hyper-V), offering good performance with efficiency. -
Enterprise Business Applications
Supports ERP systems, business intelligence, and typical data-center workloads with balanced compute power. -
Data Analytics & In-Memory Computing
High memory bandwidth and advanced instructions make it suitable for analytics tasks and in-memory databases. -
Storage Servers
Enables fast NVMe storage deployments, thanks to high PCIe lane count. -
Edge / Distributed Infrastructure
Energy-efficient enough for edge servers or smaller distributed data centers that need solid multi-core performance without excessive power draw.
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