Intel Xeon E5640 vs Intel Xeon E5649

VS

Intel Xeon E5640

Intel Xeon E5649

We compared two server CPUs: Intel Xeon E5640 with 4 cores 2.666GHz and Intel Xeon E5649 with 6 cores 2.533GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5640 's Advantages

Higher base frequency (2.666GHz vs 2.533GHz)

Intel Xeon E5649 's Advantages

Released 11 months late

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5640 +6%

437

Intel Xeon E5649

411

Geekbench 6 Multi Core

Intel Xeon E5640 +42%

2456

Intel Xeon E5649

1727

Intel Xeon E5640

VS

Intel Xeon E5649

General Parameters

Mar 2010

Release Date

Feb 2011

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Westmere-EP

Intel Socket 1366

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

Xeon (Westmere-EP)

Package

1.17 billions

Transistor Count

1.17 billions

32 nm

Manufacturing Process

32 nm

80 W

Power Consumption

80 W

Intel

Foundry

Intel

239 mm²

Die Size

239 mm²

CPU Performance

2.666 GHz

Performance Core Base Frequency

2.533 GHz

2.933 GHz

Performance Core Turbo Frequency

2.8 GHz

4

Total Core Count

6

8

Total Thread Count

12

133 MHz

Bus Frequency

133 MHz

20.0

Multiplier

19.0

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

12 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3

3

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

2

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