Intel Xeon E5 4650 vs Intel Xeon E5640

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Intel Xeon E5-4650

Intel Xeon E5640

We compared two server CPUs: Intel Xeon E5 4650 with 8 cores 2.7GHz and Intel Xeon E5640 with 4 cores 2.666GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 4650 's Advantages

Released 2 years and 2 months late

Newer PCIe version (3 vs 2)

Higher base frequency (2.7GHz vs 2.666GHz)

Larger L3 cache size (20MB vs 12MB)

Intel Xeon E5640 's Advantages

Lower TDP (80W vs 130W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5 4650 +8%

472

Intel Xeon E5640

437

Geekbench 6 Multi Core

Intel Xeon E5 4650

1962

Intel Xeon E5640 +25%

2456

Intel Xeon E5 4650

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Intel Xeon E5640

General Parameters

May 2012

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Sandy Bridge-EP

Core Architecture

Westmere-EP

Intel Socket 2011

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon E5 (Sandy Bridge-EP)

Generation

Xeon (Westmere-EP)

Package

2.27 billions

Transistor Count

1.17 billions

32 nm

Manufacturing Process

32 nm

130 W

Power Consumption

80 W

Intel

Foundry

Intel

435 mm²

Die Size

239 mm²

CPU Performance

2.7 GHz

Performance Core Base Frequency

2.666 GHz

3.3 GHz

Performance Core Turbo Frequency

2.933 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

133 MHz

27.0

Multiplier

20.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

20 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

4

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3

4

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

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