Intel Xeon E5 2665 vs Intel Xeon X5660

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Intel Xeon E5-2665

Intel Xeon X5660

We compared two server CPUs: Intel Xeon E5 2665 with 8 cores 2.4GHz and Intel Xeon X5660 with 6 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 2665 's Advantages

Released 2 years late

Newer PCIe version (3 vs 2)

Larger L3 cache size (20MB vs 12MB)

Intel Xeon X5660 's Advantages

Higher base frequency (2.8GHz vs 2.4GHz)

Lower TDP (95W vs 115W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5 2665 +17%

554

Intel Xeon X5660

471

Geekbench 6 Multi Core

Intel Xeon E5 2665 +125%

4680

Intel Xeon X5660

2075

Intel Xeon E5 2665

VS

Intel Xeon X5660

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

115 W

Power Consumption

95 W

Intel

Foundry

Intel

435 mm²

Die Size

239 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.8 GHz

3.1 GHz

Performance Core Turbo Frequency

3.2 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

24.0

Multiplier

21.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

20 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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