Xeon L7555 vs Intel Xeon E5640

VS

Intel Xeon L7555

Intel Xeon E5640

We compared two server CPUs: Xeon L7555 with 8 cores 1.866GHz and Intel Xeon E5640 with 4 cores 2.666GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Xeon L7555 's Advantages

Higher specification of memory (1333 vs 3)

Larger L3 cache size (18MB vs 12MB)

Intel Xeon E5640 's Advantages

Higher base frequency (2.666GHz vs 1.866GHz)

More modern manufacturing process (32nm vs 45nm)

Lower TDP (80W vs 95W)

Score

Xeon L7555

VS

Intel Xeon E5640

General Parameters

Mar 2010

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Nehalem-EX

Core Architecture

Westmere-EP

Intel Socket 1567

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon(Beckton)

Generation

Xeon (Westmere-EP)

Package

2.3 billions

Transistor Count

1.17 billions

45 nm

Manufacturing Process

32 nm

95 W

Power Consumption

80 W

Intel

Foundry

Intel

684 mm²

Die Size

239 mm²

CPU Performance

1.866 GHz

Performance Core Base Frequency

2.666 GHz

2.533 GHz

Performance Core Turbo Frequency

2.933 GHz

8

Total Core Count

4

16

Total Thread Count

8

133 MHz

Bus Frequency

133 MHz

14.0

Multiplier

20.0

64 KB per core

L1 Cache

64 K per core

256 KB per core

L2 Cache

256 K per core

18 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

8

SMP

2

Memory Parameters

DDR3-1333

Memory Types

DDR3

4

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

2

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