Intel Xeon E5 2665 vs Xeon E7520

VS

Intel Xeon E5-2665

Intel Xeon E7520

We compared two server CPUs: Intel Xeon E5 2665 with 8 cores 2.4GHz and Xeon E7520 with 4 cores 1.866GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 2665 's Advantages

Released 2 years late

Newer PCIe version (3 vs 2)

Higher base frequency (2.4GHz vs 1.866GHz)

Larger L3 cache size (20MB vs 18MB)

More modern manufacturing process (32nm vs 45nm)

Xeon E7520 's Advantages

Higher specification of memory (1333 vs 3)

Lower TDP (95W vs 115W)

Score

Intel Xeon E5 2665

VS

Xeon E7520

General Parameters

Mar 2012

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Sandy Bridge-EP

Core Architecture

Nehalem-EX

Intel Socket 2011

Socket

Intel Socket 1567

N/A

Integrated Graphics

N/A

Xeon E5 (Sandy Bridge-EP)

Generation

Xeon(Beckton)

Package

2.27 billions

Transistor Count

2.3 billions

32 nm

Manufacturing Process

45 nm

115 W

Power Consumption

95 W

Intel

Foundry

Intel

435 mm²

Die Size

684 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

1.866 GHz

3.1 GHz

Performance Core Turbo Frequency

0

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

133 MHz

24.0

Multiplier

14.0

64 K per core

L1 Cache

64 KB per core

256 K per core

L2 Cache

256 KB per core

20 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

2

SMP

8

Memory Parameters

DDR3

Memory Types

DDR3-1333

4

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

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