IntelExcellentServer

Intel Xeon 6521P

Explore Intel Xeon 6521P technical reviews, specifications and benchmark results, with practical context for server workloads and platform planning.

Last updated: 2026-10-20
9.0/ 10
Technical rating

Excellent

Intel Xeon 6521P is a Server processor with 24 cores and 48 threads. It runs at 2.6 GHz and boosts up to 4.1 GHz. It records a PassMark CPU Mark of 66657 and a single-thread rating of 3238. Its stated TDP is 225 W.

CPU Mark66,657
9 samples
Single Thread3,238
Overall rank#139
of 6,054
Reference price$1,250.00

Technical assessment

A summary based on specifications and results.

Excellent
9.0Excellent

Intel Xeon 6521P is a Server processor with 24 cores and 48 threads. It runs at 2.6 GHz and boosts up to 4.1 GHz. It records a PassMark CPU Mark of 66657 and a single-thread rating of 3238. Its stated TDP is 225 W.

Specification context

What do these specifications mean in practice?

The Intel Xeon 6521P is a Server released in 2025. Recorded specifications include 24 cores and 48 threads, up to 4.10 GHz turbo, a 225 W reference TDP, a 66,657 CPU Mark. Use these figures to understand its position, then compare the results with your software and the complete platform.

Reading guide

Read the performance results

The 66,657 CPU Mark is a broad overall-performance measure, while the 3,238 single-thread result adds context for less-parallel work. Compare the nearby alternatives on this page and do not treat one score as a verdict for every application.

Platform and compatibility

It uses socket LGA4710. A matching socket is only the first check; confirm the official motherboard CPU-support list, BIOS revision and board power limits.

Memory and power

Recorded memory support: DDR5. The 225 W TDP helps size the cooling class, but it is not the same as peak wall-power consumption.

FAQ

Common processor questions

What are the key Intel Xeon 6521P specifications?

The main recorded details are 24 cores and 48 threads, up to 4.10 GHz turbo, a 225 W reference TDP, a 66,657 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.

Is the Intel Xeon 6521P good for gaming?

The product name or CPU Mark alone cannot answer that. Check single-thread performance, core count, the target graphics card, gaming resolution and results from the games you play.

Which motherboards support the Intel Xeon 6521P?

Start with LGA4710 motherboards, then confirm the official CPU-support list and required BIOS revision for the exact board before buying.

How much power does the Intel Xeon 6521P use?

The recorded reference TDP is 225 W. Real consumption can be lower or higher depending on power limits, motherboard, workload and cooling.

This guidance interprets recorded specifications and results; it does not claim hands-on device testing. Results can vary with motherboard, power, memory and cooling.

Multi-axis comparison

How does this processor compare?

A direct comparison with nearby processors from the same brand and a similar core count.

5 CPU

Overall and multi-core performance

A higher CPU Mark indicates stronger overall performance.

01Intel Xeon 6521PThis CPU66,657 points
02AMD EPYC 7543PAMD66,590 points
03AMD EPYC 8434PAMD66,490 points
04AMD EPYC 7B12AMD66,044 points
05AMD EPYC 9335AMD65,811 points

Single-thread performance

Measures speed in tasks that depend on one CPU thread.

01Intel Xeon 6521PThis CPU3,238 points
02AMD EPYC 7543PAMD2,737 points
03AMD EPYC 9335AMD2,732 points
04AMD EPYC 8434PAMD2,448 points
05AMD EPYC 7B12AMD1,927 points

Performance per watt

Estimated as CPU Mark divided by TDP.

01AMD EPYC 8434PAMD332.5 Mark/W
02AMD EPYC 9335AMD313.4 Mark/W
03Intel Xeon 6521PThis CPU296.3 Mark/W
04AMD EPYC 7543PAMD296.0 Mark/W
05AMD EPYC 7B12AMD275.2 Mark/W

Bars are relative to the processors shown here, not a global ranking of every CPU.

Detailed benchmark results

Snapshot from 2026-10-20

Data CompressionKBytes/Sec
967,721.00
Data EncryptionMBytes/Sec
51,221.00
Extended InstructionsMillion Matrices/Sec
72,820.00
Find Prime NumbersMillion Primes/Sec
560.00
Floating Point MathMOps/Sec
178,828.00
Integer MathMOps/Sec
246,263.00
PhysicsFrames/Sec
5,972.00
Random String SortingThousand Strings/Sec
104,517.00

Core specifications

BrandIntel
CategoryServer
Release year2025
SocketLGA4710
Cores / threads24 / 48
Base clock2.60 GHz
Max turbo4.10 GHz
TDP225 W
Integrated graphics—

Memory support

DDR5
Memory typeDDR5
Official speed—
Maximum capacity4096 GB

Cache hierarchy

No structured cache data.