| Product SKU | 8558U |
|---|---|
| Product Collection | 5th Gen Intel® Xeon® Scalable Processors |
| Code Name | Products formerly Emerald Rapids |
| Vertical Segment | Server |
| Lithography | Intel 7 |
| Total Cores | 48 |
| Total Threads | 96 |
| Max Turbo Frequency | 4 GHz |
| Processor Base Frequency | 2 GHz |
| Cache | 260 MB |
| TDP | 300 W |
| Marketing Status | Launched |
| Launch Date | Q4'23 |
| Servicing Status | Baseline Servicing |
| Use Conditions | Server/Enterprise |
| Max Memory Size (dependent on memory type) | 4 TB |
| Memory Types | DDR5 @ 4800 MT/s (1 DPC) |
| Max # of Memory Channels | 8 |
| ECC Memory Supported | Yes |
| Scalability | 1S Only |
| PCI Express Revision | 5.0 |
| Max # of PCI Express Lanes | 80 |
| Sockets Supported | FCLGA4677 |
| Package Carrier | E1A |
| DTS Max | 95 °C |
| T CASE | 78 CASE "> |
| Package Size | 77.5mm x 56.5mm |
| Intel On Demand Activation Model | No |
| Intel Data Streaming Accelerator (DSA) | 1 default devices |
| Intel Advanced Matrix Extensions (AMX) | Yes |
| Intel Speed Select Technology – Core Power | Yes |
| Intel Speed Select Technology – Turbo Frequency | Yes |
| Intel Deep Learning Boost (Intel DL Boost) on CPU | Yes |
| Intel Speed Select Technology - Base Frequency | Yes |
| High Priority Cores | 16 |
| High Priority Core Frequency | 2.2 GHz |
| Low Priority Cores | 32 |
| Low Priority Core Frequency | 1.8 GHz |
| Intel Resource Director Technology (Intel RDT) | Yes |
| Intel Speed Shift Technology | Yes |
| Intel Turbo Boost Technology | 2.0 |
| Intel Hyper-Threading Technology | Yes |
| Intel Transactional Synchronization Extensions | Yes |
| Intel 64 | Yes |
| Instruction Set Extensions | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| # of AVX-512 FMA Units | 2 |
| Intel Volume Management Device (VMD) | Yes |
| Intel Trust Domain Extensions (Intel TDX) | Yes |
| Intel Crypto Acceleration | Yes |
| Intel QuickAssist Software Acceleration | Yes |
| Intel Platform Firmware Resilience Support | Yes |
| Intel Control-Flow Enforcement Technology | Yes |
| Intel Total Memory Encryption - Multi Key | Yes |
| Intel Total Memory Encryption | Yes |
| Intel AES New Instructions | Yes |
| Intel Software Guard Extensions (Intel SGX) | Yes with Intel® SPS |
| Default Maximum Enclave Page Cache (EPC) Size for Intel SGX | 512 GB |
| Intel OS Guard | Yes |
| Intel Trusted Execution Technology | Yes |
| Execute Disable Bit | Yes |
| Intel Boot Guard | Yes |
| Intel Run Sure Technology | Yes |
| Mode-based Execute Control (MBEC) | Yes |
| Intel Virtualization Technology (VT-x) | Yes |
| Intel Virtualization Technology for Directed I/O (VT-d) | Yes |
| Intel VT-x with Extended Page Tables (EPT) | Yes |
CPU, Intel Xeon
Intel Xeon Platinum 8558U Processor
The Intel Xeon Platinum 8558U Processor is a 48-core, 96-thread server CPU from the 5th Gen Intel Xeon Scalable processor family (Emerald Rapids), with 260 MB cache, 8-channel memory, PCIe 5.0 and a 300 W TDP.
Overview
The Intel Xeon Platinum 8558U processor is a 5th Gen Intel® Xeon® Scalable Processors server CPU (Products formerly Emerald Rapids) with 48 cores / 96 threads, a 2 GHz base frequency and up to 4 GHz max turbo, 260 MB of cache and a 300 W TDP. It uses the FCLGA4677 socket, 8 memory channels and PCI Express 5.0.
At a glance
- Cores / threads: 48 cores / 96 threads
- Frequency: 2 GHz base / 4 GHz max turbo
- Cache: 260 MB
- TDP: 300 W
- Memory: DDR5 @ 4800 MT/s (1 DPC); 8 channels; up to 4 TB; ECC Yes
- PCI Express: 5.0, 80 lanes
- Socket: FCLGA4677; scalability 1S Only
- Launch: Q4’23
- Notable features: Intel AMX, Intel TDX, Intel SGX
When to choose the Platinum 8558U
In Intel’s line-up this processor sits in Intel’s top server tier, aimed at the most demanding, high-core-count workloads. With 48 cores on the FCLGA4677 platform it suits dense virtualisation, databases and high-throughput compute, and its 300 W TDP sets the cooling and power budget for the node.
Platform & compatibility
The Intel Xeon Platinum 8558U uses the FCLGA4677 socket on 1S Only platforms, supports DDR5 @ 4800 MT/s (1 DPC), with up to 8 memory channels, and up to 4 TB of memory, provides PCI Express 5.0 (80 lanes). Confirm the exact OEM platform, BIOS level and memory population for your workload before ordering.
Deployment notes
The Platinum 8558U installs in a FCLGA4677 platform with up to 8 memory channels and up to 4 TB of memory. Intel AMX accelerates INT8 and BF16 AI inference directly on the CPU. Intel TDX adds hardware-isolated confidential-computing virtual machines. Intel SGX provides application enclaves. It is launched as part of 5th Gen Intel® Xeon® Scalable Processors and is intended for dense virtualisation, databases and high-throughput compute.
FAQ
How many cores does it have? 48 cores and 96 threads.
What socket does it use? FCLGA4677, in 1S Only systems.
What memory does it support? DDR5 @ 4800 MT/s (1 DPC).
Does it support ECC memory? Yes.
Related
Configuration, availability and lead time depend on the required quantity, server pairing and delivery destination. Send your requirement to receive a quotation.
