Intel Xeon E5645 vs Intel Xeon E3 1278L v4

VS

Intel Xeon E5645

Intel Xeon E3-1278L v4

We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and Intel Xeon E3 1278L v4 with 4 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5645 's Advantages

Higher base frequency (2.4GHz vs 2GHz)

Larger L3 cache size (12MB vs 6MB)

Intel Xeon E3 1278L v4 's Advantages

Released 5 years and 3 months late

Higher specification of memory (1600 vs 3)

Newer PCIe version (3 vs 2)

More modern manufacturing process (14nm vs 32nm)

Lower TDP (47W vs 80W)

Score

Intel Xeon E5645

VS

Intel Xeon E3 1278L v4

General Parameters

Mar 2010

Release Date

Jun 2015

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Broadwell-DT

Intel Socket 1366

Socket

Intel BGA 1364

N/A

Integrated Graphics

Intel Iris Pro P6300

Xeon (Westmere-EP)

Generation

Xeon E3 (Broadwell-DT)

Package

1.17 billions

Transistor Count

-

32 nm

Manufacturing Process

14 nm

80 W

Power Consumption

47 W

Intel

Foundry

Intel

239 mm²

Die Size

182 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2 GHz

2.666 GHz

Performance Core Turbo Frequency

3.3 GHz

6

Total Core Count

4

12

Total Thread Count

8

133 MHz

Bus Frequency

100 MHz

18.0

Multiplier

20.0

64 K per core

L1 Cache

64 KB per core

256 K per core

L2 Cache

256 KB per core

12 MB shared

L3 Cache

6 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR3

Memory Types

DDR3-1600

3

Max Memory Channels

2

-

Max Memory Bandwidth

25.6 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

-

Official Website

Intel Xeon E3 1278L v4

2

PCIe Version

3

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