Xeon L5639 vs Xeon E7520

VS

Intel Xeon L5639

Intel Xeon E7520

We compared two server CPUs: Xeon L5639 with 6 cores 2.133GHz 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

Xeon L5639 's Advantages

Released 11 months late

Higher base frequency (2.133GHz vs 1.866GHz)

More modern manufacturing process (32nm vs 45nm)

Lower TDP (60W vs 95W)

Xeon E7520 's Advantages

Larger L3 cache size (18MB vs 12MB)

Score

Xeon L5639

VS

Xeon E7520

General Parameters

Feb 2011

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Nehalem-EX

Intel Socket 1366

Socket

Intel Socket 1567

N/A

Integrated Graphics

N/A

Xeon(Westmere-EP)

Generation

Xeon(Beckton)

Package

1.17 billions

Transistor Count

2.3 billions

32 nm

Manufacturing Process

45 nm

60 W

Power Consumption

95 W

Intel

Foundry

Intel

239 mm²

Die Size

684 mm²

CPU Performance

2.133 GHz

Performance Core Base Frequency

1.866 GHz

2.667 GHz

Performance Core Turbo Frequency

0

6

Total Core Count

4

12

Total Thread Count

8

133 MHz

Bus Frequency

133 MHz

16.0

Multiplier

14.0

64 KB per core

L1 Cache

64 KB per core

256 KB per core

L2 Cache

256 KB per core

12 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

2

SMP

8

Memory Parameters

DDR3-1333

Memory Types

DDR3-1333

3

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

2

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