Intel Xeon E5603 vs Intel Xeon E3 1245

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Intel Xeon E5603

Intel Xeon E3-1245

We compared two server CPUs: Intel Xeon E5603 with 4 cores 1.6GHz and Intel Xeon E3 1245 with 4 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5603 's Advantages

Lower TDP (80W vs 95W)

Intel Xeon E3 1245 's Advantages

Newer PCIe version (3 vs 2)

Higher base frequency (3.3GHz vs 1.6GHz)

Larger L3 cache size (8MB vs 4MB)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5603

201

Intel Xeon E3 1245 +266%

736

Geekbench 6 Multi Core

Intel Xeon E5603

586

Intel Xeon E3 1245 +339%

2578

Intel Xeon E5603

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Intel Xeon E3 1245

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

1.6 GHz

Performance Core Base Frequency

3.3 GHz

0

Performance Core Turbo Frequency

3.7 GHz

4

Total Core Count

4

Total Thread Count

8

133 MHz

Bus Frequency

100 MHz

12.0

Multiplier

33.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

4 MB shared

L3 Cache

8 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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