Feex·CPU
Intel · Xeon Platinum · Server

Intel® Xeon™ Platinum 9221

The Intel Xeon Platinum 9221 is a server processor released on July 1, 2019, built on the Cascade Lake architecture using a 14 nm process. It has 32 cores and 64 threads, a base clock of 2.30 GHz, a maximum boost of 3.70 GHz, 72 MB of L3 cache, a 250 W TDP and the FCBGA5903 socket.

Cores
32
Threads
64
Boost Clock
3.7 GHz
Base Clock
2.3 GHz
Architecture
Cascade Lake
Socket
FCBGA5903
TDP
250 W
L3 Cache
71.5 MB
Core layout
PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
32 Performance 64 Threads
Notable capabilities:AVX-512Extended Page Tables (EPT)

Best for

Heavy parallel simulation & compilationServer / professional infrastructure

Overview

The Intel Xeon Platinum 9221 is a server processor with 32 cores and 64 threads, built on the Cascade Lake architecture. It launched in Jul 2019. Clocks run from 2.3 GHz base to 3.7 GHz boost. A 71.5-MB L3 cache backs the cores (3.2 MB per core). It supports DDR4 memory. It uses the FCBGA5903 socket. Rated TDP is 250 W. Notable platform capabilities: AVX-512, Extended Page Tables (EPT).

Core Configuration

Cores
32
Threads
64
Threads per Core
2
Base Clock
2.3 GHz
Boost Clock
3.7 GHz

The Intel Xeon Platinum 9221 has 32 physical cores and runs 64 logical threads. It runs 2 threads per core. It runs at a base clock of 2.30 GHz and boosts up to 3.70 GHz.

Architecture & Generation

Manufacturer
Intel
Family
Xeon Platinum
Segment
Server
Generation
2nd Gen Intel Xeon Scalable Processors
Architecture
Cascade Lake
Codename
Cascade Lake
Lithography
14 nm
Release Date
Jul 2019

The Intel Xeon Platinum 9221 is a server processor, belongs to the Intel Xeon Platinum family, uses the Cascade Lake architecture, carries the codename Cascade Lake and is manufactured on a 14 nm process. It launched in Jul 2019.

Cache

L2 Cache (Total)
32 MB
L3 Cache
71.5 MB
Cache per Core
3.2 MB
Total Cache
103.5 MB

The Intel Xeon Platinum 9221 has 32 MB of L2 cache and 71.5 MB of L3 cache. That adds up to about 103.5 MB of cache, or 3.23 MB per core. Feex has no recorded L1 cache size for this processor.

Cache Hierarchy

L2L3
L2 32 MBL3 71.5 MB

The Intel Xeon Platinum 9221 has a 2-level cache hierarchy: L2 at 32 MB and L3 at 71.5 MB. L3 is the largest level and makes up about 69% of the cache listed here.

Memory Support

Max Memory
Not recorded
Memory Channels
12
Memory Bandwidth
281.6 GB/s
Memory Types
DDR4
DDR5 Support
No
DDR4 Support
Yes
LPDDR Support
No
Max Memory Speed
2,933

The Intel Xeon Platinum 9221 supports DDR4 memory, uses 12 memory channels, runs memory at up to 2,933 MT/s and delivers up to 281.6 GB/s of memory bandwidth. It does not support DDR5 and LPDDR memory.

Graphics

Integrated Graphics
No

The Intel Xeon Platinum 9221 does not include integrated graphics, so a discrete graphics card is required for display output.

Platform & Compatibility

Socket
FCBGA5903
PCIe Generation
Not recorded

The Intel Xeon Platinum 9221 uses the FCBGA5903 socket.

Power & Thermals

TDP
250 W

The Intel Xeon Platinum 9221 has a rated TDP of 250 W.

Platform Capabilities

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.

Instruction Sets

7 supported
Supported
AES-NIAVX-512AVX2AVXFMASHA64-bit (x86-64)
Not supported
AMX
Not recorded
AVX-VNNICETCET-IBTCET-SSFMA3Hyper-Threading

Security and Reliability

5 supported
Supported
Execute Disable (NX)Boot GuardSGXTrusted ExecutionMode-Based Execute Control
Not recorded
AES-NIControl-flow Enforcement (CET)Hardware RNGHardware ShieldOS GuardOS Guard (SMAP)

Virtualization

3 supported
Supported
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
Not recorded
VT-x with EPTIOMMUSecond-Level Address TranslationUnrestricted Guest

OS Compatibility

1 supported
Supported
Windows 11 eligible

The Intel Xeon Platinum 9221 supports AES-NI, AVX-512, AVX2, AVX, FMA, SHA and 64-bit (x86-64) among its instruction set features. It does not support AMX. Feex has no record for AVX-VNNI, CET, CET-IBT, CET-SS, FMA3 and Hyper-Threading, which is different from being unsupported.

The Intel Xeon Platinum 9221 supports Execute Disable (NX), Boot Guard, SGX, Trusted Execution and Mode-Based Execute Control among its security features. Feex has no record for AES-NI, Control-flow Enforcement (CET), Hardware RNG, Hardware Shield, OS Guard and OS Guard (SMAP), which is different from being unsupported.

The Intel Xeon Platinum 9221 supports Extended Page Tables (EPT), VT-d (DMA Remapping) and VT-x (Hardware Virtualization) among its virtualization features. Feex has no record for VT-x with EPT, IOMMU, Second-Level Address Translation and Unrestricted Guest, which is different from being unsupported.

Feex records the Intel Xeon Platinum 9221 as Windows 11 eligible.

Naming & Aliases

Display Name
Intel® Xeon™ Platinum 9221
Model Number
9221
Product line brand
Xeon

The Intel Xeon Platinum 9221 is also identified by the model number 9221.

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Xeon Platinum 9221 have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 37% of the specifications it tracks for the Intel Xeon Platinum 9221. 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 (per Core) and L4 Cache. Memory Support: ECC Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. Power & Thermals: 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.

Common questions

How many cores and threads does the Intel Xeon Platinum 9221 have?

The Intel Xeon Platinum 9221 has 32 cores and 64 threads.

What architecture does the Intel Xeon Platinum 9221 use?

The Intel Xeon Platinum 9221 is built on the Cascade Lake architecture.

Does the Intel Xeon Platinum 9221 have integrated graphics?

No. The Intel Xeon Platinum 9221 does not include integrated graphics.

What socket does the Intel Xeon Platinum 9221 use?

The Intel Xeon Platinum 9221 uses the FCBGA5903 socket.

What memory does the Intel Xeon Platinum 9221 support?

The Intel Xeon Platinum 9221 supports DDR4 across 12 channels.

How fast does the Intel Xeon Platinum 9221 run?

The Intel Xeon Platinum 9221 can boost up to 3.7 GHz, with a 2.3 GHz base clock.

What is the TDP of the Intel Xeon Platinum 9221?

The Intel Xeon Platinum 9221 has a TDP of 250 W.

What advanced capabilities does the Intel Xeon Platinum 9221 support?

Notable platform capabilities reported for the Intel Xeon Platinum 9221 include AVX-512, Extended Page Tables (EPT).

What is the Intel Xeon Platinum 9221 best for?

Based on its specifications, the Intel Xeon Platinum 9221 is well suited for Heavy parallel simulation & compilation, Server / professional infrastructure.

How much cache does the Intel Xeon Platinum 9221 have?

The Intel Xeon Platinum 9221 has 32768 KB of L2 cache and 71.5 MB of L3 cache.

Which features does the Intel Xeon Platinum 9221 not support?

The Intel Xeon Platinum 9221 does not support AMX.