Intel Xeon E5649 vs Intel Xeon E5 2676 v3

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Intel Xeon E5649

Intel Xeon E5-2676 v3

We compared two server CPUs: Intel Xeon E5649 with 6 cores 2.533GHz and Intel Xeon E5 2676 v3 with 12 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5649 's Advantages

Higher base frequency (2.533GHz vs 2.4GHz)

Lower TDP (80W vs 120W)

Intel Xeon E5 2676 v3 's Advantages

Released 4 years and 4 months late

Higher specification of memory (2133 vs 3)

Newer PCIe version (3 vs 2)

Larger L3 cache size (30MB vs 12MB)

More modern manufacturing process (22nm vs 32nm)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5649

411

Intel Xeon E5 2676 v3 +35%

555

Geekbench 6 Multi Core

Intel Xeon E5649 +441%

1727

Intel Xeon E5 2676 v3

319

Intel Xeon E5649

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Intel Xeon E5 2676 v3

General Parameters

Feb 2011

Release Date

Jun 2015

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Haswell-EP

Intel Socket 1366

Socket

Intel Socket 2011-3

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

Xeon E5 (Haswell-EP)

Package

1.17 billions

Transistor Count

2.6 billions

32 nm

Manufacturing Process

22 nm

80 W

Power Consumption

120 W

Intel

Foundry

Intel

239 mm²

Die Size

356 mm²

CPU Performance

2.533 GHz

Performance Core Base Frequency

2.4 GHz

2.8 GHz

Performance Core Turbo Frequency

3 GHz

6

Total Core Count

12

Total Thread Count

24

133 MHz

Bus Frequency

100 MHz

19.0

Multiplier

24.0

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

30 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3,DDR4-2133

3

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

3

-

PCIe Lanes

40

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