Intel Xeon E7 8870 vs Intel Xeon E5645

VS

Intel Xeon E7-8870

Intel Xeon E5645

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

Main Differences

Intel Xeon E7 8870 's Advantages

Released 1 years and 1 months late

Larger L3 cache size (30MB vs 12MB)

Intel Xeon E5645 's Advantages

Lower TDP (80W vs 130W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E7 8870

369

Intel Xeon E5645 +15%

425

Geekbench 6 Multi Core

Intel Xeon E7 8870

3059

Intel Xeon E5645 +1%

3117

Intel Xeon E7 8870

VS

Intel Xeon E5645

General Parameters

Apr 2011

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EX

Core Architecture

Westmere-EP

Intel Socket 1567

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon E7 (Westmere-EX)

Generation

Xeon (Westmere-EP)

Package

2.6 billions

Transistor Count

1.17 billions

32 nm

Manufacturing Process

32 nm

130 W

Power Consumption

80 W

Intel

Foundry

Intel

513 mm²

Die Size

239 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.4 GHz

2.8 GHz

Performance Core Turbo Frequency

2.666 GHz

10

Total Core Count

6

20

Total Thread Count

12

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

30 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

8

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

-

PCIe Version

2

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