Intel® Atom™ P5921B

The Intel Atom P5921B is a server processor with 8 cores and 8 threads, built on the Snow Ridge architecture. It launched in Jan 2020. A 9-MB L3 cache backs the cores (1.1 MB per core). It addresses DDR4 memory up to 64 GB across 1 channels. Notable platform capabilities: Extended Page Tables (EPT).

The Intel Atom P5921B has 8 physical cores and runs 8 logical threads. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 2.20 GHz.

The Intel Atom P5921B is a server processor, belongs to the Intel Atom P family, uses the Snow Ridge architecture, carries the codename Snow Ridge and is manufactured on a 10 nm process. It launched in Jan 2020.

The Intel Atom P5921B has 9 MB of L3 cache. That adds up to about 9.0 MB of cache, or 1.13 MB per core. Feex has no recorded L1 cache size for this processor.

The Intel Atom P5921B supports DDR4 memory, addresses up to 64 GB of memory, uses 1 memory channel, runs memory at up to 2,933 MT/s and delivers up to 23.5 GB/s of memory bandwidth. It does not support DDR5 and LPDDR memory.

The Intel Atom P5921B supports PCI Express 3.0 and provides up to 32 PCIe lanes.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Atom P5921B is also identified by the model number P5921B.

Feex has recorded 35% of the specifications it tracks for the Intel Atom P5921B. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L1 Cache (Total), L2 Cache (Total), L2 Cache (per Core) and L4 Cache. Memory Support: ECC Memory. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: TDP, Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number. Performance: single-core and multi-core ratings and all computed performance metrics.

Processors close to the Intel Atom P5921B in the Feex database, matched by socket, family, segment, architecture, core count, TDP and benchmark scores, include Intel Atom P5322, Intel Atom P5721, Intel Atom P5332, Intel Atom P5731 and Intel Atom P5931B.