Intel Xeon X5660 vs Intel Xeon E3 1220

VS

Intel Xeon X5660

Intel Xeon E3-1220

We compared two server CPUs: Intel Xeon X5660 with 6 cores 2.8GHz and Intel Xeon E3 1220 with 4 cores 3.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon X5660 's Advantages

Larger L3 cache size (12MB vs 8MB)

Intel Xeon E3 1220 's Advantages

Released 1 years and 1 months late

Newer PCIe version (3 vs 2)

Higher base frequency (3.1GHz vs 2.8GHz)

Lower TDP (80W vs 95W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon X5660

471

Intel Xeon E3 1220 +41%

667

Geekbench 6 Multi Core

Intel Xeon X5660 +74%

2075

Intel Xeon E3 1220

1192

Intel Xeon X5660

VS

Intel Xeon E3 1220

General Parameters

Mar 2010

Release Date

Apr 2011

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Sandy Bridge

Intel Socket 1366

Socket

Intel Socket 1155

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

Xeon E3 (Sandy Bridge)

Package

1.17 billions

Transistor Count

1.16 billions

32 nm

Manufacturing Process

32 nm

95 W

Power Consumption

80 W

Intel

Foundry

Intel

239 mm²

Die Size

216 mm²

CPU Performance

2.8 GHz

Performance Core Base Frequency

3.1 GHz

3.2 GHz

Performance Core Turbo Frequency

3.4 GHz

6

Total Core Count

4

12

Total Thread Count

4

133 MHz

Bus Frequency

100 MHz

21.0

Multiplier

31.0

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

8 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR3

Memory Types

DDR3

3

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

3

-

PCIe Lanes

16

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