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Intel Xeon X5260 CPU

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Intel Xeon X5260 chipset compatibility

A list of chipsets, that support the X5260, was compiled from CPU support lists, published on our website.

Intel Xeon X5260 motherboard support

There are 11 motherboards, compatible with this processor. Complete list of these motherboards is available on the Intel Xeon X5260 motherboards page.

Intel Xeon X5260 specifications

The specs of the Xeon microprocessor are published with the permission from Please check CPU-World website for full specifications.

General specs

Core Name:Wolfdale
Manufacturing Process:0.045 micron
Socket Type:Socket 771
The Number of Cores:2
The Number of Threads:2
Frequency:3.333 GHz
Bus speed:1.333 GHz
L1 Cache:64 KB (code)
64 KB (data)
L2 Cache:6 MB
Thermal Design Power:80 Watt

Instructions and Technologies

Execute Disable Bit?Yes
64-bit Support?Yes
Hyper-Threading technology?No
Enhanced SpeedStep?Yes
Instruction Set Extensions:MMX
Supplemental SSE3

Tray X5260 microprocessors have AT80573KJ0936M and EU80573KJ0936M part numbers. Please see Intel Xeon page for details on other processors from the family.

Xeon X5260 S-Spec numbers

Production versions of this Xeon CPU had the following S-spec numbers:

S-Spec numberSteppingCPU ID

CPUs, similar to Intel Xeon X5260

The Intel X5260 is a Socket 771 processor, based on Wolfdale core. There were also 9 Intel Wolfdale CPUs, that work in the same socket. Below you will find brief characteristics of these chips, along with stepping information.

Model / PartCoresThreadsFrequencyFSBL2
Xeon E5205221.867 GHz1066 MHz6MB65W++ 100%
Xeon E5220222.333 GHz1333 MHz6MB65W++ 56%
Xeon E5240223 GHz1333 MHz6MB65W++ 50%
Xeon L5215221.867 GHz1066 MHz6MB20W + 31%
Xeon L5238222.667 GHz1333 MHz6MB35W++ 69%
Xeon L5240223 GHz1333 MHz6MB40W++ 75%
Xeon L5248223 GHz1333 MHz6MB55W + 31%
Xeon X5260223.333 GHz1333 MHz6MB80W++ N/A
Xeon X5270223.5 GHz1333 MHz6MB80W + 75%
Xeon X5272223.4 GHz1600 MHz6MB80W++ 63%

"Upgrade Chance" is a probability of a successful processor upgrade/downgrade from the Xeon X5260 (original CPU) to a specific model. This number is calculated as a percentage of all motherboards, compatible with both original and upgrade CPUs, compared to the number of motherboards, that support the original Intel X5260. The number "100%" means that all motherboards, that work with the original model, also work with the upgrade CPU. The number "0%" means that none of the boards, that support the original CPU, will support the upgrade processor. The manufacturers do not always test or publish results for obscure and unreleased models, and in some cases for OEM only processors, as a result they tend to have much lower scores than more common desktop/mobile counterparts.