SKU#: UCS-CPU-I6421NC=
Availability: Sold Out
Condition: New
Brand: Cisco
Category: Components
Standard ground shipping delivery: 5–8 business days.
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Cisco UCS-CPU-I6421NC= is a 32-core 4th gen Intel Xeon Gold 6421N processor (Sapphire Rapids) with a 1.8 GHz base clock that boosts to 3.6 GHz for the LGA 4677 socket. It runs 64 threads, has 60 MB cache, has a 185 W TDP and supports DDR5-SDRAM memory in octa-channel mode up to 6 TB.
| Processor generation | Intel Xeon Scalable 4th Gen |
|---|---|
| Processor base frequency | 1.8 GHz |
| Processor manufacturer | Intel |
| Processor codename | Sapphire Rapids |
| Thermal Design Power (TDP) | 185 W |
| Processor cache | 60 MB |
| Processor ARK ID | 232395 |
| Processor model | 6421N |
| Processor threads | 64 |
| Processor operating modes | 64-bit |
| Processor boost frequency | 3.6 GHz |
| Stepping | S3 |
| Processor family | Intel Xeon Gold |
| Processor cores | 32 |
| Processor socket | LGA 4677 (Socket E) |
| Processor series | Intel Xeon Gold 6000 Series |
| Maximum internal memory supported by processor | 6 TB |
| Memory types supported by processor | DDR5-SDRAM |
| Memory channels | Octa-channel |
| ECC | Yes |
| Discrete graphics card | No |
| Intel Turbo Boost Technology | 2.0 |
| Intel Trusted Execution Technology | Yes |
| Intel Hyper Threading Technology (Intel HT Technology) | Yes |
| Intel AES New Instructions (Intel AES-NI) | Yes |
| Execute Disable Bit | Yes |
| PCI Express slots version | 5.0 |
| Supported instruction sets | AMX, SSE4.2, AVX, AVX 2.0, AVX-512 |
| Scalability | 1S |
| Intel VT-x with Extended Page Tables (EPT) | Yes |
| Embedded options available | Yes |
| Intel Virtualization Technology for Directed I/O (VT-d) | Yes |
| Intel 64 | Yes |
| Status | Launched |
| Market segment | Server |
| Launch date | Q1'23 |
| Intel Virtualization Technology (VT-x) | Yes |
| Memory speed (max) | 4400 MHz |
| AVX-512 Fused Multiply-Add (FMA) units | 2 |
| Maximum number of PCI Express lanes | 80 |
| Export Control Classification Number (ECCN) | 5A992C |
| Use conditions | Server/Enterprise |
| Intel Software Guard Extensions (Intel SGX) | Yes |
| Intel Speed Shift Technology | Yes |
| Intel OS Guard | Yes |
| Intel Boot Guard | Yes |
| Intel Speed Select technology - Performance Profile (Intel SST-PP) | Yes |
| Intel Optane DC Persistent Memory Supported | Yes |
| Intel Deep Learning Boost (Intel DL Boost) on CPU | Yes |
| Mode-based Execute Control (MBE) | Yes |
| Intel Run Sure Technology | Yes |
| Intel Resource Director Technology (Intel RDT) | Yes |
| Intel Transactional Synchronization Extensions | Yes |
| Intel Total Memory Encryption | Yes |
| Intel Control-flow Enforcement Technology (CET) | Yes |
| Maximum Enclave Size Support for Intel SGX | 128 GB |
| Intel Platform Firmware Resilience Support | Yes |
| Intel Crypto Acceleration | Yes |
| Intel QuickAssist Software Acceleration | Yes |
| Intel On Demand Feature Activation | Yes |
| Intel Data Streaming Accelerator (DSA) | 1 default devices |
| Tcase | 85 deg C |
| DTS Max | 95 deg C |
| Maximum internal memory | 4 TB |
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