Xeon L5645 vs Intel Xeon E5 2640

VS

Intel Xeon L5645

Intel Xeon E5-2640

We compared two server CPUs: Xeon L5645 with 6 cores 2.4GHz and Intel Xeon E5 2640 with 6 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Xeon L5645 's Advantages

Higher specification of memory (1333 vs 3)

Lower TDP (60W vs 95W)

Intel Xeon E5 2640 's Advantages

Released 1 years and 1 months late

Newer PCIe version (3 vs 2)

Higher base frequency (2.5GHz vs 2.4GHz)

Larger L3 cache size (15MB vs 12MB)

Score

Xeon L5645

VS

Intel Xeon E5 2640

General Parameters

Feb 2011

Release Date

Mar 2012

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Sandy Bridge-EP

Intel Socket 1366

Socket

Intel Socket 2011

N/A

Integrated Graphics

N/A

Xeon(Westmere-EP)

Generation

Xeon E5 (Sandy Bridge-EP)

Package

1.17 billions

Transistor Count

2.27 billions

32 nm

Manufacturing Process

32 nm

60 W

Power Consumption

95 W

Intel

Foundry

Intel

239 mm²

Die Size

435 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.5 GHz

2.933 GHz

Performance Core Turbo Frequency

3 GHz

6

Total Core Count

6

12

Total Thread Count

12

133 MHz

Bus Frequency

100 MHz

18.0

Multiplier

25.0

64 KB per core

L1 Cache

64 K per core

256 KB per core

L2 Cache

256 K per core

12 MB shared

L3 Cache

15 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3-1333

Memory Types

DDR3

3

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

3

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