Server CPU Intel Xeon Silver 4309Y Ice Lake LGA 4189, 8 cores / 16 threads, 2.8–3.6 GHz, 12 MB cache, 105 W, DDR4, 8-channel

The Intel Xeon Silver 4309Y is an Ice Lake server processor for LGA 4189 platforms, operating at a base frequency of 2.8 GHz with up to 3.6 GHz Max Turbo. It provides 8 cores, 12 MB of shared cache and supports octa‑channel DDR4 memory with platform capacity up to 6.14 TB. Built on Intel 10 nm process, the CPU is intended for server and workstation use and supports advanced enterprise features such as AVX‑512, virtualization extensions, hardware security technologies and persistent memory support.

Advantages

The processor combines multi‑core throughput and single‑thread responsiveness with technologies such as Intel Turbo Boost, Speed Shift and Hyper‑Threading support to improve workload performance. Hardware security features including Intel Trusted Execution Technology, Execute Disable Bit, Intel Software Guard Extensions and Total Memory Encryption help protect data and execution integrity. Virtualization and I/O capabilities — VT‑x, VT‑d, Extended Page Tables and Intel Resource Director Technology — support efficient virtualized environments and predictable resource allocation. Built‑in crypto acceleration, AVX‑512 and Deep Learning Boost deliver higher performance for encryption, AI inference and vectorized compute tasks.

Suitable for

• General-purpose and scale-out server workloads
• Virtualized environments and hyperconverged infrastructure
• Data processing, encryption and network functions (VPN, SSL offload)
• AI inference and vectorized computational tasks using AVX‑512
• Memory‑dense applications using Intel Optane persistent memory

Key specifications

• Model: Intel Xeon Silver 4309Y (Ice Lake)
• Socket: LGA 4189
• Cores: 8
• Base frequency: 2.8 GHz; Max Turbo Frequency: up to 3.6 GHz
• Cache: 12 MB shared last‑level cache (Intel Smart Cache)
• Memory: Octa‑channel DDR4, platform support up to 6.14 TB
• Manufacturing: Intel 10 nm
• Instruction sets & extensions: AVX‑512, SSE, Intel AES‑NI, Intel DL Boost
• Virtualization & I/O: VT‑x, VT‑d, VT‑x with EPT (SLAT)
• Security & reliability: Intel TXT, SGX, Execute Disable Bit, Total Memory Encryption, MBEC
• Other: Intel Crypto Acceleration, Intel RDT, Intel VMD, Optane Persistent Memory support

How to use

Install the processor into a compatible LGA 4189 motherboard following the server vendor's installation instructions and apply an appropriate cooling solution. Configure BIOS/firmware settings to enable or tune features such as Turbo Boost, Speed Shift, Hyper‑Threading, virtualization (VT‑x/VT‑d) and memory mode for Optane persistent memory if used. Use vendor‑recommended firmware and microcode updates to ensure platform stability and security.

Recommendations

For production servers, use ECC‑capable DDR4 modules and validated server motherboards designed for LGA 4189. Enable platform security features and maintain up‑to‑date firmware. Match cooling and power delivery to the workload profile to sustain Turbo frequencies under load and ensure reliable operation.