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Cisco

Cisco UCS-CPU-I6438M | 4th Gen Xeon Scalable | Base 2.2 GHz | 60MB L3 | High‑memory (M) | LGA4677 | DDR5 8‑ch | PCIe 5.0 | AVX‑512/AMX

SKU:UCS-CPU-I6438M

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Description

Balanced 4th Gen Xeon Scalable for virtualization and memory‑dense workloads. The 2.2 GHz base clock and 60MB L3 cache pair with DDR5 and the M‑suffix high‑memory capability for larger VM footprints and in‑memory databases.

Features

- High memory capacity enablement with M‑suffix
- Large 60MB L3 cache for consolidated VM and database workloads
- PCIe 5.0 and DDR5 for expanded bandwidth and I/O
- AI and compute acceleration via AVX‑512, VNNI, and AMX
- Enterprise‑grade virtualization and reliability features

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: What is the benefit of the M suffix?
A: M variants enable higher supported memory capacity per socket compared to non‑M models, ideal for memory‑intensive workloads.

Q: Is DDR5 required?
A: Yes. 4th Gen Xeon Scalable platforms use DDR5 ECC RDIMMs; check your server’s qualified memory list.

Q: Will this work in any LGA4677 motherboard?
A: Use a server/platform validated for 4th Gen Xeon with the correct BIOS/firmware and power/thermal design.

Q: Does it include a cooler?
A: Server CPUs typically rely on the system’s thermal kit; purchase the correct heatsink/airflow components for your chassis.

Q: Does the CPU require any additional licenses?
A: No CPU license is required; application or platform licenses may still apply depending on your software stack.

Technical Specifications

- Processor family: Intel Xeon Gold 6400 Series (4th Gen, Sapphire Rapids)
- Model: Xeon Gold 6438M
- Base frequency: 2.2 GHz
- Intel Smart Cache (L3): 60 MB
- Suffix M: supports higher memory capacity per socket (platform-dependent)
- Socket: LGA4677
- Memory support: DDR5 ECC RDIMM, 8 memory channels; higher capacity enablement vs non‑M variants
- PCI Express: PCIe 5.0 support (lane counts platform-dependent)
- Acceleration: Intel AVX-512, Intel DL Boost (VNNI), Intel AMX, AES-NI
- Intel Turbo Boost: Supported
- Virtualization: Intel VT-x and VT-d
- Process technology: Intel 7
- Thermal solution: Provided by server platform (heatsink/ducting per system BOM)

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