Product Collection5th Generation Intel® Xeon® Scalable Processors
Code NameProducts formerly EMERALD RAPIDS
Vertical SegmentServer
Processor Number8558U
LithographyIntel 7
Use ConditionsServer/Enterprise
Max Turbo Frequency4 GHz Cache260 MB Intel® UPI Speed0 GT/s TDP300 W Marketing StatusLaunched Launch DateQ4'23 Servicing StatusBaseline Servicing Memory TypesDDR5 @ 5200 MT/s (1 DPC) Scalability1S Only Sockets SupportedFCLGA4677 Package CarrierE1A DTS Max95 °C TCASE78 Package Size77.5mm x 56.5mm Intel® Virtual RAID on CPU (Intel® VROC) Activation OptionsVROC Boot, VROC Standard, VROC Premium Intel® Data Streaming Accelerator (DSA)1 default devices Intel® Advanced Matrix Extensions (AMX)Yes High Priority Cores16 High Priority Core Frequency2.2 GHz Low Priority Cores32 Low Priority Core Frequency1.8 GHz Intel® 64 ‡Yes Instruction Set ExtensionsIntel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 Intel® QuickAssist Software AccelerationYes Intel® Platform Firmware Resilience SupportYes Intel® Total Memory Encryption - Multi KeyYes Intel® Software Guard Extensions (Intel® SGX)Yes with Intel® SPS Default Maximum Enclave Page Cache (EPC) Size for Intel® SGX512 GB Intel® OS GuardYes Intel® Virtualization Technology for Directed I/O (VT-d) ‡YesCPU Specifications
Intel® Speed Select Technology - Performance Profile (Intel® SST-PP)
Config Active Cores Base Frequency TDP Description 8558U (0) 48 2.0 300 8558U (1) 40 2.0 270 8558U (2) 32 2.1 250 Supplemental Information
Memory Specifications
Expansion Options
Package Specifications
Intel® On Demand Available Upgrades
Activation Model QAT DLB DSA IAA SGX512 Analytics Suite 4 4 4 Advanced Technologies
Security & Reliability