Intel Xeon E5645 vs Intel Xeon E7 8870

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We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and Intel Xeon E7 8870 with 10 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5645 's Advantages

Lower TDP (80W vs 130W)

Intel Xeon E7 8870 's Advantages

Released 1 years and 1 months late

Larger L3 cache size (30MB vs 12MB)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5645 +15%

425

Intel Xeon E7 8870

369

Geekbench 6 Multi Core

Intel Xeon E5645 +1%

3117

Intel Xeon E7 8870

3059

Intel Xeon E5645

VS

Intel Xeon E7 8870

General Parameters

Mar 2010

Release Date

Apr 2011

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Westmere-EX

Intel Socket 1366

Socket

Intel Socket 1567

N/A

Integrated Graphics

N/A

Xeon (Westmere-EP)

Generation

Xeon E7 (Westmere-EX)

Package

1.17 billions

Transistor Count

2.6 billions

32 nm

Manufacturing Process

32 nm

Intel Socket 1366

Socket

Intel Socket 1567

80 W

Power Consumption

130 W

Intel

Foundry

Intel

239 mm²

Die Size

513 mm²

FC-LGA10

Package

FC-LGA10

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.4 GHz

2.666 GHz

Performance Core Turbo Frequency

2.8 GHz

6

Total Core Count

10

12

Total Thread Count

20

133 MHz

Bus Frequency

133 MHz

18.0

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

30 MB shared

No

Unlocked Multiplier

No

2

SMP

8

Memory Parameters

DDR3

Memory Types

DDR3

3

Max Memory Channels

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

-

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