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Cisco UCS-CPU-I6258R | Xeon Gold 6258R | 28C/56T | 2.7 GHz base, 4.0 GHz turbo | 38.5 MB L3 | 205 W | DDR4-2933, 6-ch | LGA3647

SKU:UCS-CPU-I6258R

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Description

Compute-dense 28-core processor ideal for virtualization clusters, in-memory databases, and private cloud on Cisco UCS M5 platforms. High core count with strong single-thread turbo for mixed workloads.

Features

- 28 cores/56 threads for dense compute and consolidation
- Large 38.5 MB L3 cache for data-intensive tasks
- DDR4-2933 six-channel memory for high throughput
- Turbo Boost up to 4.0 GHz for bursty single-thread performance
- 48 PCIe 3.0 lanes for expandable I/O
- Comprehensive virtualization and security feature set

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 UCS servers support the 6258R?
A: Cisco UCS LGA3647-based M5 servers such as C220 M5, C240 M5, C480 M5, and B200 M5 (model- and BIOS-dependent).

Q: Is a matched pair required for dual-socket systems?
A: Yes. Use identical CPU models and steppings for dual-CPU configurations per Cisco/Intel requirements.

Q: What memory speed and channels are supported?
A: Up to DDR4-2933 across six memory channels per socket, with ECC RDIMM/LRDIMM.

Q: Does this ship with a heat sink?
A: Heat sinks are server-specific accessories and typically ordered separately in Cisco UCS.

Q: What type of workloads fit the 6258R?
A: Virtualization, HPC, big data analytics, and scale-up databases that benefit from high core counts.

Technical Specifications

- Processor family: 2nd Gen Intel Xeon Scalable (Cascade Lake Refresh)
- Model: Xeon Gold 6258R
- Cores/Threads: 28/56
- Base frequency: 2.7 GHz
- Max Turbo frequency: up to 4.0 GHz
- Intel Smart Cache (L3): 38.5 MB
- TDP: 205 W
- Memory support: 6-channel DDR4-2933, ECC RDIMM/LRDIMM
- Max memory capacity per socket: up to 1.0 TB (non-L SKU)
- Socket: FCLGA3647
- PCIe lanes: 48x PCIe 3.0
- Instruction set & accelerators: SSE4.2, AVX2, AVX-512 (2 FMA/clk)
- Virtualization: Intel VT-x, VT-d, EPT
- Security: Intel AES-NI, Secure Key, SGX (platform dependent)
- Typical platforms: Cisco UCS M5 rack and blade servers

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