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Square green printed circuit board with gold contact pads and silver metal heat spreader marked Intel Xeon 8558U

Intel

Intel Xeon Platinum 8558U 48-core 2.0 GHz server processor PK8072205512400

SKU CH-0XTF-1ZZ18 MPN PK8072205512400

48-core Xeon server processor with 96 threads, 260 MB L3 cache, 2.0 GHz base and 4.0 GHz turbo, LGA 4677 socket, 300 W TDP, PCIe 5.0 with 80 lanes.

  • NameXeon Platinum 8558U
  • CPU Socket TypeLGA 4677
  • Core NameEmerald Rapids
  • # of Cores48-Core
  • # of Threads96
  • Operating Frequency2.0 GHz
  • 48 cores and 96 threads scale through parallel workloads
  • 0 GHz base and 4.0 GHz max turbo adapt to variable demands
  • 260 MB L3 cache keeps large data sets close to the cores
  • 80 PCIe 5.0 lanes connect high-throughput accelerators and storage
  • 300 W TDP within a 10 nm process balances density and power

48-core Xeon Platinum 8558U for single-socket

This Intel Xeon Platinum 8558U is a 48-core, 96-thread server processor built for single-socket platforms. It runs at a 2.0 GHz base frequency and can reach 4.0 GHz maximum turbo frequency. The chip provides 260 MB of L3 cache and fits the LGA 4677 socket with a 300 W thermal design power.

Suited for dense single-socket compute.

The processor supports 1S Only scalability, making it appropriate for workloads that fit within one socket such as virtualisation, database, or high-performance computing nodes. Buyers who need multi-socket scaling or higher core counts per socket should look at other parts.

80 lanes of PCI Express 5.0 for high-bandwidth I/O

The CPU exposes up to 80 PCI Express 5.0 lanes, enabling direct attachment of fast storage, networking, and accelerator cards without a switch. This lane count is the key figure for determining whether the platform can support the required I/O configuration.

Points forts

  • 48 cores and 96 threads scale through parallel workloads
  • 0 GHz base and 4.0 GHz max turbo adapt to variable demands
  • 260 MB L3 cache keeps large data sets close to the cores
  • 80 PCIe 5.0 lanes connect high-throughput accelerators and storage
  • 300 W TDP within a 10 nm process balances density and power

Caractéristiques

BrandIntel
SeriesIntel Xeon Platinum
NameXeon Platinum 8558U
ModelPK8072205512400
CPU Socket TypeLGA 4677
Core NameEmerald Rapids
# of Cores48-Core
# of Threads96
Operating Frequency2.0 GHz
Max Turbo Frequency4.0 GHz
L3 Cache260MB
64-Bit SupportYes
Manufacturing Tech10 nm
Integrated Memory Controller Speed4800 MHz
Maximum Memory Capacity4TB
Memory Channel8 Channel
Virtualization Technology SupportYes
Scalability1S Only
PCI Express Revision5.0
Max # of PCI Express Lanes80
Thermal Design Power300W
Cooling DeviceCooling device not included - Processor Only
Poids d’expédition0.45 kg
Dimensions du colis25 × 25 × 6 mm

Questions sur cet article

Should I choose the 8558U or a lower-core Platinum model for a single-socket server?

The 8558U provides 48 cores and 96 threads with a 2.0 GHz base and 4.0 GHz max turbo, while 1S-only scalability means it cannot be paired in a dual-socket system.

How does the 2.0 GHz base clock translate to actual throughput under sustained load?

All 48 cores run at 2.0 GHz continuously within the 300 W TDP; workloads that can use 96 threads will see maximum throughput at this frequency, while lighter loads can boost up to 4.0 GHz on fewer cores.

What does PCI Express 5.0 with 80 lanes cap in practice?

The processor exposes 80 lanes of PCIe 5.0, allowing up to 80 lanes of Gen 5 bandwidth for add-in cards, limited by the motherboard's physical slot layout.

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