Intel Xeon E3 1275 vs Intel Xeon X5660

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Intel Xeon E3-1275

Intel Xeon X5660

We compared two server CPUs: Intel Xeon E3 1275 with 4 cores 3.4GHz 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 E3 1275 's Advantages

Released 1 years and 1 months late

Newer PCIe version (3 vs 2)

Higher base frequency (3.4GHz vs 2.8GHz)

Intel Xeon X5660 's Advantages

Larger L3 cache size (12MB vs 8MB)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E3 1275 +185%

1347

Intel Xeon X5660

471

Geekbench 6 Multi Core

Intel Xeon E3 1275 +118%

4527

Intel Xeon X5660

2075

Intel Xeon E3 1275

VS

Intel Xeon X5660

General Parameters

Apr 2011

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Sandy Bridge

Core Architecture

Westmere-EP

Intel Socket 1155

Socket

Intel Socket 1366

Intel HD P3000

Integrated Graphics

N/A

Xeon E3 (Sandy Bridge)

Generation

Xeon (Westmere-EP)

Package

1.16 billions

Transistor Count

1.17 billions

32 nm

Manufacturing Process

32 nm

95 W

Power Consumption

95 W

Intel

Foundry

Intel

216 mm²

Die Size

239 mm²

CPU Performance

3.4 GHz

Performance Core Base Frequency

2.8 GHz

3.8 GHz

Performance Core Turbo Frequency

3.2 GHz

4

Total Core Count

6

8

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

34.0

Multiplier

21.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3

2

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

16

PCIe Lanes

-

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