Intel Xeon E5645 vs Intel Xeon E3 1220L

VS

Intel Xeon E5645

Intel Xeon E3-1220L

We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and Intel Xeon E3 1220L with 2 cores 2.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5645 's Advantages

Higher base frequency (2.4GHz vs 2.2GHz)

Larger L3 cache size (12MB vs 3MB)

Intel Xeon E3 1220L 's Advantages

Released 1 years and 1 months late

Newer PCIe version (3 vs 2)

Lower TDP (20W vs 80W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5645

425

Intel Xeon E3 1220L +33%

569

Geekbench 6 Multi Core

Intel Xeon E5645 +359%

3117

Intel Xeon E3 1220L

678

Intel Xeon E5645

VS

Intel Xeon E3 1220L

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

0.504 billions

32 nm

Manufacturing Process

32 nm

80 W

Power Consumption

20 W

Intel

Foundry

Intel

239 mm²

Die Size

131 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.2 GHz

2.666 GHz

Performance Core Turbo Frequency

3.4 GHz

6

Total Core Count

2

12

Total Thread Count

4

133 MHz

Bus Frequency

100 MHz

18.0

Multiplier

22.0

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

3 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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