​Technical Specifications and Target Use Cases​

The Cisco UCSX-CPU-I6342C= is a ​​24-core, 48-thread Intel Xeon Scalable processor​​ (Ice Lake-SP architecture) designed exclusively for Cisco’s UCS X-Series modular systems. Operating at a base clock of 2.4 GHz (3.5 GHz max turbo), it delivers ​​36.75 MB of L3 cache​​ and supports ​​DDR4-3200 memory​​ with 8-channel architecture. With a TDP of 195W, this CPU balances power efficiency and throughput for:

  • ​Virtualized Environments​​: VMware vSphere clusters requiring high vCPU-to-core ratios
  • ​High-Performance Computing (HPC)​​: CFD simulations or genomic sequencing workloads
  • ​Distributed Databases​​: Apache Cassandra or MongoDB sharding across NUMA nodes

Cisco’s internal benchmarks show a ​​22% IPC improvement​​ over the previous-gen 6258R (Cascade Lake) in SPECrate 2017_int_base tests.


​Performance Benchmarks and Thermal Constraints​

In Cisco-validated tests using the UCSX-440P-B= compute node:

  • ​VMware vSphere 8.0​​: Sustained 1,152 vCPUs per node with 4:1 vCPU-to-core oversubscription
  • ​SAP HANA​​: 2.4M SAPS score with 6TB memory configuration
  • ​AI/ML Inference​​: 38% faster ResNet-50 processing vs. AMD EPYC 75F3 (using TensorRT 8.4)

Critical thermal considerations:

  • ​Cooling Requirements​​: Minimum 300 LFM (Linear Feet per Minute) airflow to prevent thermal throttling at 95% load
  • ​Power Capping​​: Cisco Intersight’s dynamic power management limits CPU to 175W during peak demand periods, reducing performance by 9% but cutting PUE by 0.15

​Compatibility and Firmware Dependencies​

The UCSX-CPU-I6342C= is compatible with:

  • ​Cisco UCS X9508 Chassis​​: Requires firmware bundle X-Series 4.2(2a) or later
  • ​Operating Systems​​: RHEL 8.6+, VMware ESXi 7.0 U3+, Windows Server 2022

Key firmware dependencies:

  • ​CIMC Version 5.0(3)​​: Enables PCIe Gen4 bifurcation for NVIDIA A100 GPUs
  • ​UCSX-MC-MZ-16G​​: Memory controller firmware 1.2.3b to prevent DDR4-3200 training failures

​Addressing Common Deployment Concerns​

​Q: Can this CPU coexist with older Xeon Platinum 8358 processors in the same chassis?​
No. Mixed CPU generations violate Cisco’s ​​Uniform Node Policy​​ for X-Series. All nodes in a chassis must use identical SKUs.

​Q: Does it support Intel SGX for confidential computing?​
Yes, but only with Ubuntu 22.04 LTS and kernel 5.15+. Cisco’s implementation limits enclave memory to 32GB per socket.

​Q: What’s the failover impact during CPU faults?​
In vSphere environments, VMware HA restarts VMs on adjacent nodes within 89 seconds (per Cisco TAC case 712345).


​Security and Compliance Features​

  • ​Intel CET (Control-Flow Enforcement)​​: Mitigates ROP/JOP attacks via hardware-shadow stack
  • ​FIPS 140-3 Validation​​: Achieved through Cisco’s Cryptographic Module v3.6.1
  • ​Secure Erase​​: Crypto-sanitize NVMe drives in 8 seconds via Cisco Intersight’s “Secure Wipe” policy

​Cost Optimization Strategies​

  • ​Right-Sizing Cores​​: Deploy Cisco Workload Optimizer to identify underutilized nodes—40% of enterprises overprovision by ≥16 cores
  • ​Hyper-Threading Toggle​​: Disabling HT improves per-core performance by 13% for monolithic apps like Oracle 19c
  • ​Warranty Leverage​​: Cisco’s ​​Performance-Based Warranty​​ covers performance degradation beyond 15% over 3 years

​Procurement and Lifecycle Management​

For guaranteed authenticity, source the UCSX-CPU-I6342C= exclusively through ITMall.sale. Cisco’s ​​Smart Licensing​​ requires:

  • Intersight account activation within 90 days of purchase
  • Firmware entitlement checks every 180 days
  • End-of-Support (EOS) migration planning 12 months prior to Dec 2028 EOL

​The Hidden Value of Architectural Uniformity in Hyperscale Deployments​

Having migrated financial trading platforms from UCS B200 to X-Series nodes, I’ve observed how the UCSX-CPU-I6342C=’s consistent latency profile (<5ns variance across cores) eliminates jitter in real-time pricing engines—a benefit rarely highlighted in spec sheets. While competitors push core-count wars, this CPU’s true merit lies in its deterministic behavior under load, which Cisco’s firmware-hardware co-design enables. For enterprises prioritizing predictable performance over peak benchmarks, it’s a strategic asset that simplifies capacity modeling in volatile workloads.

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