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Cisco UCS-CPU-I8558U | Xeon Platinum 8558U 48C/96T, 2.0GHz, 260MB L3, 300W TDP, DDR5-4800 8-ch, PCIe 5.0, LGA4677

SKU:UCS-CPU-I8558U

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Description

High-core-count 4th Gen Xeon Scalable Platinum CPU for UCS M7 platforms, delivering strong multi-thread performance with DDR5-4800 memory support and PCIe 5.0 I/O. Ideal for dense virtualization, analytics, and cloud workloads.

Features

- 48 cores and 96 threads for highly parallel workloads
- Large 260 MB L3 cache to sustain throughput under heavy virtualization and analytics
- DDR5-4800 memory and 8-channel bandwidth for faster data access
- PCIe 5.0 for next-gen NVMe storage and accelerator performance
- Enterprise features: AVX-512 and AMX for HPC/AI acceleration, hardware-assisted virtualization and encryption

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Is this CPU compatible with my UCS M7 server?
A: It is designed for UCS M7 platforms using LGA4677. Verify your exact server model’s CPU support matrix and BIOS/firmware level.

Q: Can I mix this CPU with a different model in a dual-socket system?
A: No. Dual-socket systems require matching CPU models with identical specs and stepping for supported operation.

Q: What memory does this processor support?
A: DDR5 ECC RDIMMs, up to 4800 MT/s, in an 8-channel configuration per CPU. Actual speed depends on DIMM population and platform.

Q: How many PCIe lanes are available?
A: Up to 80 PCIe 5.0 lanes per CPU, subject to platform design and slot allocation.

Technical Specifications

- Processor family: 4th Gen Xeon Scalable Platinum (Sapphire Rapids)
- Model: 8558U
- Cores / Threads: 48 / 96
- Base frequency: 2.0 GHz
- Smart Cache (L3): 260 MB
- TDP: 300 W
- Memory support: DDR5 RDIMM, up to 4800 MT/s
- Memory channels: 8-channel per CPU
- PCIe: Gen 5.0 (up to 80 lanes per CPU, platform-dependent)
- Socket: LGA4677 (Socket E)
- Instruction set & accelerators: 64-bit, AVX-512, AMX, AES-NI, VT-x/VT-d
- Platform: Cisco UCS M7 (X-Series and C-Series) compatibility; check server CPU support matrix
- Multiprocessor support: 1P/2P (use identical CPUs in dual-socket systems)
- Thermal solution: Heatsink sold separately (server-specific)

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