Intel Xeon X5660 vs Intel Xeon E5 4640

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Intel Xeon X5660

Intel Xeon E5-4640

We compared two server CPUs: Intel Xeon X5660 with 6 cores 2.8GHz and Intel Xeon E5 4640 with 8 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon X5660 's Advantages

Higher base frequency (2.8GHz vs 2.4GHz)

Intel Xeon E5 4640 's Advantages

Released 2 years and 2 months late

Newer PCIe version (3 vs 2)

Larger L3 cache size (20MB vs 12MB)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon X5660 +25%

471

Intel Xeon E5 4640

375

Geekbench 6 Multi Core

Intel Xeon X5660 +215%

2075

Intel Xeon E5 4640

658

Intel Xeon X5660

VS

Intel Xeon E5 4640

General Parameters

Mar 2010

Release Date

May 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

95 W

Power Consumption

95 W

Intel

Foundry

Intel

239 mm²

Die Size

435 mm²

CPU Performance

2.8 GHz

Performance Core Base Frequency

2.4 GHz

3.2 GHz

Performance Core Turbo Frequency

2.8 GHz

6

Total Core Count

8

12

Total Thread Count

16

133 MHz

Bus Frequency

100 MHz

21.0

Multiplier

24.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

12 MB shared

L3 Cache

20 MB shared

No

Unlocked Multiplier

No

2

SMP

4

Memory Parameters

DDR3

Memory Types

DDR3

3

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

3

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