Intel Xeon E5640 vs Opteron 1381

VS

Intel Xeon E5640

AMD Opteron 1381

We compared two server CPUs: Intel Xeon E5640 with 4 cores 2.666GHz and Opteron 1381 with 4 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5640 's Advantages

Released 9 months late

Higher base frequency (2.666GHz vs 2.5GHz)

Larger L3 cache size (12MB vs 6MB)

More modern manufacturing process (32nm vs 45nm)

Lower TDP (80W vs 115W)

Opteron 1381 's Advantages

Higher specification of memory (1333 vs 3)

Score

Intel Xeon E5640

VS

Opteron 1381

General Parameters

Mar 2010

Release Date

Jun 2009

Intel

Manufacturer

AMD

Server

Type

Server

Westmere-EP

Core Architecture

Suzuka

Intel Socket 1366

Socket

AMD Socket AM3

N/A

Integrated Graphics

On certain motherboards (Chipset feature)

Xeon (Westmere-EP)

Generation

Opteron(Suzuka)

Package

1.17 billions

Transistor Count

0.758 billions

32 nm

Manufacturing Process

45 nm

80 W

Power Consumption

115 W

Intel

Foundry

GlobalFoundries

239 mm²

Die Size

258 mm²

CPU Performance

2.666 GHz

Performance Core Base Frequency

2.5 GHz

2.933 GHz

Performance Core Turbo Frequency

0

4

Total Core Count

4

8

Total Thread Count

4

133 MHz

Bus Frequency

200 MHz

20.0

Multiplier

12.5

64 K per core

L1 Cache

128 KB per core

256 K per core

L2 Cache

512 KB per core

12 MB shared

L3 Cache

6 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR3

Memory Types

DDR3-1333

3

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

2

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