CPUServerReleased 2020

Intel Atom P5921B

8C/8T

The Atom P5921B is the entry 8-core model of the Atom P5900 family, Intel's first 10 nm system-on-chip designed for 5G wireless base stations, launched in the first quarter of 2020. Built on Tremont cores codenamed Snow Ridge, it runs at a fixed 2.2 GHz and integrates Ethernet, Intel QuickAssist Technology for cryptography and compression offload, up to sixteen SATA ports and USB 3.0. Unlike its siblings it supports a single DDR4 memory channel.

General

Manufacturer: Intel
Model: Intel Atom P5921B
Segment: Server
Generation: Atom P5900 (Snow Ridge)
Codename: Snow Ridge
Architecture: x86_64
Microarchitecture: Tremont
Release date: 2020
Price: Search on Amazon

Cores & clocks

Cores / threads: 8 cores / 8 threads
Base clock: 2.20 GHz
Boost clock: —
TDP (design W): —
Unlocked: ✕ No
L2 cache: 9 MB
L3 cache: —
Technology (nm): 10 nm
10 nm

Platform

Socket: —
2-CPU (multi-socket): ✕ No
Integrated GPU: None
Memory type: DDR4-2933
1-channel
Memory size: Up to 64 GB
ECC memory: ✓ Yes
PCIe: PCIe 3.0 (32 lanes)

Instructions & AI

Instruction extensions: SSE4.2AES-NI
NPU: None

OS support

Linux: UbuntuFedoraArch Linux
Notes: Atom P-series network and edge processors do not appear on Microsoft's supported processor lists for Windows 10 22H2 or Windows 11 24H2, 25H2 and 26H2. Equipment built on them typically runs Linux-based networking and virtualization software, and mainstream Linux distributions support them.

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