Intel Xeon E5649 vs Xeon E6540

VS

Intel Xeon E5649

Intel Xeon E6540

We compared two server CPUs: Intel Xeon E5649 with 6 cores 2.533GHz and Xeon E6540 with 6 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5649 's Advantages

Released 11 months late

Higher base frequency (2.533GHz vs 2GHz)

More modern manufacturing process (32nm vs 45nm)

Lower TDP (80W vs 105W)

Xeon E6540 's Advantages

Higher specification of memory (1333 vs 3)

Larger L3 cache size (18MB vs 12MB)

Score

Intel Xeon E5649

VS

Xeon E6540

General Parameters

Feb 2011

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Nehalem-EX

Intel Socket 1366

Socket

Intel Socket 1567

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

Xeon(Beckton)

Package

1.17 billions

Transistor Count

2.3 billions

32 nm

Manufacturing Process

45 nm

80 W

Power Consumption

105 W

Intel

Foundry

Intel

239 mm²

Die Size

684 mm²

CPU Performance

2.533 GHz

Performance Core Base Frequency

2 GHz

2.8 GHz

Performance Core Turbo Frequency

2.266 GHz

6

Total Core Count

6

12

Total Thread Count

12

133 MHz

Bus Frequency

133 MHz

19.0

Multiplier

15.0

64 K per core

L1 Cache

64 KB per core

256 K per core

L2 Cache

256 KB per core

12 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3-1333

3

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

2

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