Intel Xeon E5603 vs Intel Xeon E3 1275 v2

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Intel Xeon E5603

Intel Xeon E3-1275 v2

We compared two server CPUs: Intel Xeon E5603 with 4 cores 1.6GHz and Intel Xeon E3 1275 v2 with 4 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E3 1275 v2 's Advantages

Released 1 years and 3 months late

Newer PCIe version (3 vs 2)

Higher base frequency (3.5GHz vs 1.6GHz)

Larger L3 cache size (8MB vs 4MB)

More modern manufacturing process (22nm vs 32nm)

Lower TDP (77W vs 80W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5603

201

Intel Xeon E3 1275 v2 +210%

624

Geekbench 6 Multi Core

Intel Xeon E5603

586

Intel Xeon E3 1275 v2 +256%

2088

Intel Xeon E5603

VS

Intel Xeon E3 1275 v2

General Parameters

Feb 2011

Release Date

May 2012

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Ivy Bridge

Intel Socket 1366

Socket

Intel Socket 1155

N/A

Integrated Graphics

Intel HD P4000

Xeon (Westmere-EP)

Generation

Xeon E3 (Ivy Bridge)

Package

1.17 billions

Transistor Count

1.4 billions

32 nm

Manufacturing Process

22 nm

80 W

Power Consumption

77 W

Intel

Foundry

Intel

239 mm²

Die Size

160 mm²

CPU Performance

1.6 GHz

Performance Core Base Frequency

3.5 GHz

0

Performance Core Turbo Frequency

3.9 GHz

4

Total Core Count

4

Total Thread Count

8

133 MHz

Bus Frequency

100 MHz

12.0

Multiplier

35.0

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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