Opteron A1120 vs Intel Xeon E5645

VS

AMD Opteron A1120

Intel Xeon E5645

We compared two server CPUs: Opteron A1120 with 4 cores 1.7GHz and Intel Xeon E5645 with 6 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Opteron A1120 's Advantages

Released 5 years and 10 months late

Higher specification of memory (1866 vs 3)

Newer PCIe version (3 vs 2)

More modern manufacturing process (28nm vs 32nm)

Lower TDP (25W vs 80W)

Intel Xeon E5645 's Advantages

Higher base frequency (2.4GHz vs 1.7GHz)

Larger L3 cache size (12MB vs 8MB)

Score

Opteron A1120

VS

Intel Xeon E5645

General Parameters

Jan 2016

Release Date

Mar 2010

AMD

Manufacturer

Intel

Server

Type

Server

Seattle

Core Architecture

Westmere-EP

AMD Socket SP1

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Opteron (Seattle)

Generation

Xeon (Westmere-EP)

Package

-

Transistor Count

1.17 billions

28 nm

Manufacturing Process

32 nm

25 W

Power Consumption

80 W

GlobalFoundries

Foundry

Intel

182 mm²

Die Size

239 mm²

CPU Performance

1.7 GHz

Performance Core Base Frequency

2.4 GHz

0

Performance Core Turbo Frequency

2.666 GHz

4

Total Core Count

6

4

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

17.0

Multiplier

18.0

80 K per core

L1 Cache

64 K per core

2 MB shared

L2 Cache

256 K per core

8 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3,DDR4-1866

Memory Types

DDR3

2

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

8

PCIe Lanes

-

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