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Cisco

Cisco UCSX-CPU-I6438M | Gold 6438M CPU | 32-core 2.2GHz base, 60MB L3, 205W TDP | DDR5-4800, 8-ch | LGA4677

SKU:UCSX-CPU-I6438M

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Description

Balanced 32-core processor for dense virtualization, container platforms, and scale-out databases on the LGA4677 ecosystem. Offers strong multi-core throughput with DDR5-4800 and PCIe 5.0 for high-performance storage and networking adapters. The M-suffix indicates expanded memory capacity support on compatible platforms.

Features

- High core density for multi-VM and container workloads
- DDR5-4800 with 8 channels for sustained memory throughput
- PCIe 5.0 for next-gen storage and networking
- Compute accelerators: AVX-512, AMX, DL Boost
- Virtualization and I/O isolation with VT-x/VT-d

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 workloads benefit most from the 6438M?
A: Virtualization clusters, microservices, analytics, and scale-out databases that leverage high core counts.

Q: Does the M-suffix change memory performance?
A: It denotes an increased memory capacity tier on supported platforms; bandwidth remains driven by 8-channel DDR5-4800.

Q: Is BIOS update required?
A: Servers may require the latest BIOS/firmware to recognize and optimize 4th Gen Xeon Scalable CPUs.

Q: Can I mix with non-M suffix CPUs?
A: Not recommended. Use identical CPUs across sockets to ensure stability and supported configurations.

Q: Are PCIe 5.0 devices supported?
A: Yes, platform permitting. The CPU supports PCIe 5.0 for next-generation adapters.

Technical Specifications

- Processor series: Xeon Scalable Gold 6400 (4th Gen, Sapphire Rapids)
- Model: 6438M (Medium memory capacity tier)
- Cores / Threads: 32 / 64
- Base frequency: 2.2 GHz
- Intel Smart Cache (L3): 60 MB
- TDP: 205 W
- Memory support: DDR5-4800, 8-channel, ECC
- Socket: LGA4677
- I/O: PCIe 5.0 support
- Instruction set extensions: AVX-512, AMX, DL Boost
- Virtualization: Intel VT-x, VT-d
- Platform: Dual-socket capable (platform dependent)

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