Intel Xeon E5 2640 vs Intel Xeon L5638

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Intel Xeon E5-2640

Intel Xeon L5638

We compared two server CPUs: Intel Xeon E5 2640 with 6 cores 2.5GHz and Intel Xeon L5638 with 6 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 2640 's Advantages

Released 2 years late

Newer PCIe version (3 vs 2)

Higher base frequency (2.5GHz vs 2GHz)

Larger L3 cache size (15MB vs 12MB)

Intel Xeon L5638 's Advantages

Lower TDP (60W vs 95W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5 2640 +107%

800

Intel Xeon L5638

385

Geekbench 6 Multi Core

Intel Xeon E5 2640 +27%

3177

Intel Xeon L5638

2487

Intel Xeon E5 2640

VS

Intel Xeon L5638

General Parameters

Mar 2012

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Sandy Bridge-EP

Core Architecture

Westmere-EP

Intel Socket 2011

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon E5 (Sandy Bridge-EP)

Generation

Xeon (Westmere-EP)

Package

2.27 billions

Transistor Count

1.17 billions

32 nm

Manufacturing Process

32 nm

95 W

Power Consumption

60 W

Intel

Foundry

Intel

435 mm²

Die Size

239 mm²

CPU Performance

2.5 GHz

Performance Core Base Frequency

2 GHz

3 GHz

Performance Core Turbo Frequency

2.4 GHz

6

Total Core Count

6

12

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

25.0

Multiplier

15.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

15 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3

4

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

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