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Intel Xeon 6521P processor
Intel

Intel Xeon 6521P

Expert rating8.4 / 10

Processors (CPUs)View on intel.com
Brand:
Intel
Form Factor:
Server & Enthusiast
CPU Socket:
LGA 4710
Core/Thread Count:
24C/48T
TDP:
175W
Core Type:
Performance
CPU Series:
Xeon 6

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Manufacturer: Intel Last updated: 2026-09-11

Intel Xeon 6521P Review

Intel Xeon 6521P 24-core 48-thread server processor, 2.6GHz base / 4.0GHz boost, 175W TDP, 48MB L3 cache, Granite Rapids, LGA 4710 socket

The Intel Xeon 6521P is a mainstream dual-socket-capable Xeon 6 P-core processor for general-purpose virtualization and business-critical workloads. Built on Intel's Granite Rapids architecture with performance (P-core) and rated for a 175W TDP, it pairs 24 cores and 48 threads with a 2.6GHz base clock that boosts up to 4.0GHz, backed by 48MB of L3 cache.

Performance and Architecture

With 24 cores and 48 threads, the Intel Xeon 6521P is built on Intel's Granite Rapids generation, using performance (P-core) designed for strong per-core performance in latency-sensitive workloads. Its 2.6GHz base clock boosts to 4.0GHz, and the 48MB L3 cache helps keep large working sets in cache for databases and virtualization hosts.

Platform and Memory

The Intel Xeon 6521P uses the LGA 4710 platform in a 1S/2S configuration, supporting 8-channel memory up to 2TB (8-channel DDR5-6400). This represents the mid-range of the Granite Rapids P-core lineup, giving system builders a clear point in Intel's current Xeon 6 stack to match against specific rack power and density budgets.

Comparison to Alternatives

Within the Xeon 6 lineup in this catalog, the Intel Xeon 6521P sits at the 24-core tier, offering stronger per-core and per-thread performance than the E-core parts at a similar price point. Against AMD's EPYC processors in this catalog, Intel's Xeon 6 competes primarily on per-core performance, platform features like CXL and AMX, and software ecosystem maturity. It fits traditional enterprise virtualization and database deployments already standardized on Intel platforms.

Specifications

Identity

Product LineXeon
Model Number6521P
CodenameGranite Rapids
Release Year2024

Segment and platform

Market SegmentServer
MicroarchitectureGranite Rapids
SocketOther
Socket1S/2S
Socket StatusCurrent
Process Node3 nm

Core configuration

Total Cores24
Performance Cores24
Efficiency Cores0
Total Threads48
SMT EnabledYes

Clock speeds

P-Core Base Clock2.6 GHz
P-Core Boost Clock4.0 GHz
Unlocked MultiplierNo

Cache

L3 Cache48 MB

Power and thermal

Base Power175 W

Memory

Memory TypeDDR5
Memory Channels8
Max Memory Capacity2048 GB (8-channel DDR5-6400)
Max Memory Capacity2048 GB
ECC SupportYes

Graphics and AI

Integrated GraphicsNo
Copilot Plus CertifiedNo

Expansion

PCIe GenerationPCIe 5.0
Form FactorServer & Enthusiast
TDP175 W

Measured results

SPEC CPU 2017

Best published result on spec.org as of 23 Sept 2026.

1-chip system
SPECrate® 2017 Integer (base)307

Cores 24 · Tested in H3C UniServer R4700 G7 (Intel Xeon 6521P) · Published by New H3C Technologies Co., Ltd., Apr-2026

Full disclosure on spec.org
SPECrate® 2017 Floating Point (base)429

Cores 24 · Tested in ProLiant Compute DL340e Gen12 (2.60 GHz, Intel Xeon 6521P) · Published by Hewlett Packard Enterprise, Aug-2026

Full disclosure on spec.org

SPEC®, SPECrate® and SPECspeed® are registered trademarks of the Standard Performance Evaluation Corporation. Copied by permission of the Standard Performance Evaluation Corporation (SPEC). Results retrieved from www.spec.org on 23 Sept 2026.

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.4 / 10

The Intel Xeon 6521P is a well-balanced mainstream Xeon 6 P-core chip for general enterprise virtualization and database workloads.

Best for

  • General-purpose virtualization
  • Business-critical databases
  • Dual-socket enterprise servers

Not for

  • Hyperscale cloud density needs
  • Extreme HPC workloads
  • Budget single-socket builds

FAQs

What are the key specifications of the Intel Xeon 6521P?

The Intel Xeon 6521P is a processor from Intel. Key specs: Cores 24, Threads 48, Base Clock 2.6 GHz, Boost Clock 4.0 GHz, L3 Cache 48.

Will the Intel Xeon 6521P work with my current setup?

The Intel Xeon 6521P lists Socket is LGA 4710. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.

Who is the Intel Xeon 6521P best suited to?

It suits general-purpose virtualization, business-critical databases, dual-socket enterprise servers.

What are the drawbacks of the Intel Xeon 6521P?

It is a poor fit for hyperscale cloud density needs, extreme hpc workloads, budget single-socket builds.

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