Intel Xeon Gold 5423N CPU – Full Technical Specification
The Intel Xeon Gold 5423N is a high‑performance server processor from the 4th Generation Intel Xeon Scalable family, based on the Sapphire Rapids Edge Enhanced architecture. It is designed for demanding enterprise servers, cloud platforms, virtualization, and compute‑intensive workloads. With a balanced combination of 20 physical cores, 40 threads, high turbo frequency, and advanced memory and I/O support, this CPU delivers scalable multi‑threaded performance for mission‑critical applications in modern data center environments.
General Processor Specifications
| Parameter | Specification |
|---|---|
| Processor Name | Intel Xeon Gold 5423N |
| CPU Family | 4th Generation Intel Xeon Scalable |
| Architecture | Sapphire Rapids Edge Enhanced |
| Process Technology | Intel 7 (10 nm class) |
| Target Segment | Enterprise / Server |
| Socket Type | FCLGA4677 |
| Market Position | Enterprise‑grade server CPU |
Core and Performance Specifications
| Feature | Details |
|---|---|
| Total Physical Cores | 20 |
| Total Logical Threads | 40 |
| Base Clock Frequency | 2.10 GHz |
| Maximum Turbo Frequency | 4.00 GHz |
| L3 Cache | 37.5 MB |
| Thermal Design Power (TDP) | 145 W |
Memory Specifications
| Feature | Specification |
|---|---|
| Supported Memory Type | DDR5 |
| Maximum Memory Speed | 4000 MT/s |
| Memory Channels | 8‑channel |
| Maximum Memory Capacity | Up to 4 TB |
| ECC Memory Support | Yes |
I/O and Expansion Capabilities
| Feature | Specification |
|---|---|
| PCI Express Version | PCIe Gen4 |
| Maximum PCIe Lanes | 48 lanes |
| Expansion Support | High‑speed connectivity for accelerators, storage, and networking |
| Scalability | 1‑socket optimized |
Cache Details
| Cache Level | Size |
|---|---|
| L1 Cache (per core) | 80 KB (Instruction + Data) |
| L2 Cache (per core) | 2 MB |
| L3 Cache (shared) | 37.5 MB |
Advanced Technology Support
The Intel Xeon Gold 5423N integrates a range of advanced technologies designed to improve performance, virtualization, and security:
| Technology | Supported |
|---|---|
| Intel Hyper‑Threading Technology | Yes |
| Intel Turbo Boost Technology | Yes |
| Intel Virtualization Technology (VT‑x) | Yes |
| Intel Virtualization Technology for Directed I/O (VT‑d) | Yes |
| Intel Deep Learning Boost | Yes |
| ECC Memory Support | Yes |
| AVX‑512 & Vector Extensions | Yes |
| Intel Speed Select Technology | Yes |
| Intel Data Streaming Accelerator (DSA) | Yes |
Performance Characteristics
The Xeon Gold 5423N’s architecture provides 20 cores and 40 threads, enabling it to handle high‑concurrency workloads with ease. A base frequency of 2.10 GHz ensures solid baseline performance, while a boost of up to 4.00 GHz delivers enhanced responsiveness for demanding tasks. The large 37.5 MB shared cache reduces latency for data‑intensive operations, and the eight‑channel DDR5 memory subsystem supports high‑capacity, high‑bandwidth configurations ideal for virtualization, big data analytics, and enterprise‑grade database applications. Intel
Typical Use Cases
The Intel Xeon Gold 5423N is ideal for a wide range of enterprise and data center applications, including:
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Virtualized server infrastructure and cloud platforms
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High‑performance database and analytics solutions
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Scalable multi‑tenant hosting environments
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Software‑defined networking and storage systems
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Mission‑critical enterprise applications
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Compute‑intensive virtualization and container workloads
Summary
The Intel Xeon Gold 5423N server processor offers a powerful combination of core count, clock frequency, memory support, and advanced platform features. Its eight‑channel DDR5 memory support, robust PCIe Gen4 lanes, and enterprise‑ready technology set make it a strong choice for modern data centers and demanding server workloads. With excellent multi‑threaded throughput and scalable performance, this CPU is well‑suited for virtualization, cloud computing, analytics, and mission‑critical enterprise environments.
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