Intel Xeon E5649 vs Intel Xeon E3 1225

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Intel Xeon E5649

Intel Xeon E3-1225

We compared two server CPUs: Intel Xeon E5649 with 6 cores 2.533GHz and Intel Xeon E3 1225 with 4 cores 3.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5649 's Advantages

Larger L3 cache size (12MB vs 6MB)

Lower TDP (80W vs 95W)

Intel Xeon E3 1225 's Advantages

Newer PCIe version (3 vs 2)

Higher base frequency (3.1GHz vs 2.533GHz)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5649

411

Intel Xeon E3 1225 +207%

1262

Geekbench 6 Multi Core

Intel Xeon E5649

1727

Intel Xeon E3 1225 +109%

3621

Intel Xeon E5649

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Intel Xeon E3 1225

General Parameters

Feb 2011

Release Date

Apr 2011

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Sandy Bridge

Intel Socket 1366

Socket

Intel Socket 1155

N/A

Integrated Graphics

Intel HD P3000

Xeon (Westmere-EP)

Generation

Xeon E3 (Sandy Bridge)

Package

1.17 billions

Transistor Count

1.16 billions

32 nm

Manufacturing Process

32 nm

80 W

Power Consumption

95 W

Intel

Foundry

Intel

239 mm²

Die Size

216 mm²

CPU Performance

2.533 GHz

Performance Core Base Frequency

3.1 GHz

2.8 GHz

Performance Core Turbo Frequency

3.4 GHz

6

Total Core Count

4

12

Total Thread Count

4

133 MHz

Bus Frequency

100 MHz

19.0

Multiplier

31.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

12 MB shared

L3 Cache

6 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR3

Memory Types

DDR3

3

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

3

-

PCIe Lanes

16

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