IntelOutdated for demanding workloadsServer

Intel Xeon E5603 @ 1.60GHz

Explore Intel Xeon E5603 @ 1.60GHz technical reviews, specifications and benchmark results, with practical context for server workloads and platform planning.

Last updated: 2026-10-20
2.6/ 10
Technical rating

Outdated for demanding workloads

Intel Xeon E5603 @ 1.60GHz is a Server processor with 4 cores and 4 threads. Its base clock is 1.6 GHz. It records a PassMark CPU Mark of 1935 and a single-thread rating of 712. Its stated TDP is 80 W.

CPU Mark1,935
20 samples
Single Thread712
Overall rank#3,892
of 6,054
Reference price$89.00

Technical assessment

A summary based on specifications and results.

Outdated for demanding workloads
2.6Outdated for demanding workloads

Intel Xeon E5603 @ 1.60GHz is a Server processor with 4 cores and 4 threads. Its base clock is 1.6 GHz. It records a PassMark CPU Mark of 1935 and a single-thread rating of 712. Its stated TDP is 80 W.

Specification context

What do these specifications mean in practice?

The Intel Xeon E5603 @ 1.60GHz is a Server released in 2011. Recorded specifications include 4 cores and 4 threads, a 80 W reference TDP, a 1,935 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 1,935 CPU Mark is a broad overall-performance measure, while the 712 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 LGA1366. A matching socket is only the first check; confirm the official motherboard CPU-support list, BIOS revision and board power limits.

Memory and power

The 80 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 E5603 @ 1.60GHz specifications?

The main recorded details are 4 cores and 4 threads, a 80 W reference TDP, a 1,935 CPU Mark. The tables on this page show socket, memory, cache and graphics data when available.

Is the Intel Xeon E5603 @ 1.60GHz 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 E5603 @ 1.60GHz?

Start with LGA1366 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 E5603 @ 1.60GHz use?

The recorded reference TDP is 80 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 E5507 @ 2.27GHzIntel1,943 points
02Intel Xeon X6550 @ 2.00GHzIntel1,936 points
03Intel Xeon E5603 @ 1.60GHzThis CPU1,935 points
04AMD Opteron 3320 EEAMD1,918 points
05AMD Opteron 4122AMD1,913 points

Single-thread performance

Measures speed in tasks that depend on one CPU thread.

02AMD Opteron 3320 EEAMD838 points
03Intel Xeon E5603 @ 1.60GHzThis CPU712 points

Performance per watt

Estimated as CPU Mark divided by TDP.

01AMD Opteron 3320 EEAMD76.7 Mark/W
02Intel Xeon E5507 @ 2.27GHzIntel24.3 Mark/W
03Intel Xeon E5603 @ 1.60GHzThis CPU24.2 Mark/W
04AMD Opteron 4122AMD20.1 Mark/W
05Intel Xeon X6550 @ 2.00GHzIntel14.9 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

Single ThreadMOps/Sec
712.00

Core specifications

BrandIntel
CategoryServer
Release year2011
SocketLGA1366
Cores / threads4 / 4
Base clock1.60 GHz
Max turbo—
TDP80 W
Integrated graphics—

Memory support

—
Memory type—
Official speed—
Maximum capacity—

Cache hierarchy

L1I8 x 32 KB
L1D8 x 32 KB
L28 x 256 KB
L30 MB