Xeon L5645 vs Xeon E5540

VS

Intel Xeon L5645

Intel Xeon E5540

We compared two server CPUs: Xeon L5645 with 6 cores 2.4GHz and Xeon E5540 with 4 cores 2.533GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Xeon L5645 's Advantages

Released 1 years and 11 months late

Higher specification of memory (1333 vs 1066)

Larger L3 cache size (12MB vs 8MB)

More modern manufacturing process (32nm vs 45nm)

Lower TDP (60W vs 80W)

Xeon E5540 's Advantages

Higher base frequency (2.533GHz vs 2.4GHz)

Score

Xeon L5645

VS

Xeon E5540

General Parameters

Feb 2011

Release Date

Mar 2009

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Gainestown

Intel Socket 1366

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon(Westmere-EP)

Generation

Xeon(Gainestown)

Package

1.17 billions

Transistor Count

0.731 billions

32 nm

Manufacturing Process

45 nm

60 W

Power Consumption

80 W

Intel

Foundry

Intel

239 mm²

Die Size

263 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.533 GHz

2.933 GHz

Performance Core Turbo Frequency

2.8 GHz

6

Total Core Count

4

12

Total Thread Count

8

133 MHz

Bus Frequency

133 MHz

18.0

Multiplier

19.0

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

8 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3-1333

Memory Types

DDR3-1066

3

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

2

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