Intel Xeon E5640 vs Intel Xeon E5 2648L

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Intel Xeon E5640

Intel Xeon E5-2648L

We compared two server CPUs: Intel Xeon E5640 with 4 cores 2.666GHz and Intel Xeon E5 2648L with 8 cores 1.8GHz . 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 1.8GHz)

Intel Xeon E5 2648L 's Advantages

Released 2 years late

Newer PCIe version (3 vs 2)

Larger L3 cache size (20MB vs 12MB)

Lower TDP (70W vs 80W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5640

437

Intel Xeon E5 2648L +10%

481

Geekbench 6 Multi Core

Intel Xeon E5640

2456

Intel Xeon E5 2648L +78%

4386

Intel Xeon E5640

VS

Intel Xeon E5 2648L

General Parameters

Mar 2010

Release Date

Mar 2012

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Sandy Bridge-EP

Intel Socket 1366

Socket

Intel Socket 2011

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

Xeon E5 (Sandy Bridge-EP)

Package

1.17 billions

Transistor Count

2.27 billions

32 nm

Manufacturing Process

32 nm

80 W

Power Consumption

70 W

Intel

Foundry

Intel

239 mm²

Die Size

435 mm²

CPU Performance

2.666 GHz

Performance Core Base Frequency

1.8 GHz

2.933 GHz

Performance Core Turbo Frequency

2.3 GHz

4

Total Core Count

8

Total Thread Count

16

133 MHz

Bus Frequency

100 MHz

20.0

Multiplier

18.0

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

20 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3

3

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

3

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