Technical Information- Processor Manufacturer: Intel
- Processor Core: Octatetraconta-core (48 Core)
- Clock Speed: 2 GHz
- Overclocking Speed: 4 GHz
- L3 Cache: 260 MB
- 64-bit Processing: Yes
- Processor Threads: 96
- Processor Socket: Socket LGA-4677
- Features: Intel Virtualization Technology
- Processor Generation: 5th Gen
- Intel Trusted Execution Technology: Yes
- Device Supported: Server
Memory- Memory Speed Supported: 5.20 GHz
- Memory Technology Supported: DDR5 SDRAM
Power Description- Thermal Design Power: 300 W
Environmental Conditions- Thermal Specification: 203°F (95°C)
Physical Characteristics Learn more about the Xeon Platinum 8558U
Model| Brand | Intel |
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| Series | Intel Xeon Platinum |
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| Name | Xeon Platinum 8558U |
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| Model | PK8072205512400 |
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Details| CPU Socket Type | LGA 4677 |
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| Core Name | Emerald Rapids |
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| # of Cores | 48-Core |
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| # of Threads | 96 |
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| Operating Frequency | 2.0 GHz |
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| Max Turbo Frequency | 4.0 GHz |
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| L3 Cache | 260MB |
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| 64-Bit Support | Yes |
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| Manufacturing Tech | 10 nm |
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| Integrated Memory Controller Speed | 4800 MHz |
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| Maximum Memory Capacity | 4TB |
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| Memory Channel | 8 Channel |
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| Virtualization Technology Support | Yes |
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| Scalability | 1S Only |
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| PCI Express Revision | 5.0 |
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| Max # of PCI Express Lanes | 80 |
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| Thermal Design Power | 300W |
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| Cooling Device | Cooling device not included - Processor Only |
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Additional Information| First Listed on Newegg | February 22, 2026 |
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Customer Reviews of Xeon Platinum 8558U