IntelEntry-level / agingServer

Intel Xeon E5-2665 @ 2.40GHz

Explore Intel Xeon E5-2665 @ 2.40GHz technical reviews, specifications and benchmark results, with practical context for server workloads and platform planning.

Last updated: 2026-10-20
4.5/ 10
Technical rating

Entry-level / aging

Intel Xeon E5-2665 @ 2.40GHz is a Server processor with 8 cores and 16 threads. It runs at 2.4 GHz and boosts up to 3.1 GHz. It records a PassMark CPU Mark of 8287 and a single-thread rating of 1385. Its stated TDP is 115 W.

CPU Mark8,287
184 samples
Single Thread1,385
Overall rank#1,923
of 6,054
Reference price$978.00

Technical assessment

A summary based on specifications and results.

Entry-level / aging
4.5Entry-level / aging

Intel Xeon E5-2665 @ 2.40GHz is a Server processor with 8 cores and 16 threads. It runs at 2.4 GHz and boosts up to 3.1 GHz. It records a PassMark CPU Mark of 8287 and a single-thread rating of 1385. Its stated TDP is 115 W.

Specification context

What do these specifications mean in practice?

The Intel Xeon E5-2665 @ 2.40GHz is a Server released in 2012. Recorded specifications include 8 cores and 16 threads, up to 3.10 GHz turbo, a 115 W reference TDP, a 8,287 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 8,287 CPU Mark is a broad overall-performance measure, while the 1,385 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 LGA2011. 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: DDR3-800. The 115 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 E5-2665 @ 2.40GHz specifications?

The main recorded details are 8 cores and 16 threads, up to 3.10 GHz turbo, a 115 W reference TDP, a 8,287 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.

Is the Intel Xeon E5-2665 @ 2.40GHz 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 E5-2665 @ 2.40GHz?

Start with LGA2011 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 E5-2665 @ 2.40GHz use?

The recorded reference TDP is 115 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.

01AMD EPYC 3151AMD8,306 points
03Intel Xeon E5-2665 @ 2.40GHzThis CPU8,287 points

Single-thread performance

Measures speed in tasks that depend on one CPU thread.

04AMD EPYC 3151AMD1,873 points
05Intel Xeon E5-2665 @ 2.40GHzThis CPU1,385 points

Performance per watt

Estimated as CPU Mark divided by TDP.

01AMD EPYC 3151AMD184.6 Mark/W
05Intel Xeon E5-2665 @ 2.40GHzThis CPU72.1 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
143,130.00
Data EncryptionMBytes/Sec
2,574.00
Extended InstructionsMillion Matrices/Sec
6,411.00
Find Prime NumbersMillion Primes/Sec
45.00
Floating Point MathMOps/Sec
12,290.00
Integer MathMOps/Sec
33,018.00
PhysicsFrames/Sec
687.00
Random String SortingThousand Strings/Sec
20,974.00

Core specifications

BrandIntel
CategoryServer
Release year2012
SocketLGA2011
Cores / threads8 / 16
Base clock2.40 GHz
Max turbo3.10 GHz
TDP115 W
Integrated graphics—

Memory support

DDR3
Memory typeDDR3
Official speedDDR3-800
Maximum capacity384 GB

Cache hierarchy

L1I8 x 32 KB
L1D8 x 32 KB
L28 x 256 KB
L320 MB