Intel Xeon E3 1278L v4 vs Intel Xeon E5 2666 v3

VS

Intel Xeon E3-1278L v4

Intel Xeon E5-2666 v3

We compared two server CPUs: Intel Xeon E3 1278L v4 with 4 cores 2GHz and Intel Xeon E5 2666 v3 with 10 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E3 1278L v4 's Advantages

Released 7 months late

More modern manufacturing process (14nm vs 22nm)

Lower TDP (47W vs 135W)

Intel Xeon E5 2666 v3 's Advantages

Higher specification of memory (2133 vs 1600)

Higher base frequency (2.9GHz vs 2GHz)

Larger L3 cache size (25MB vs 6MB)

Score

Intel Xeon E3 1278L v4

VS

Intel Xeon E5 2666 v3

General Parameters

Jun 2015

Release Date

Nov 2014

Intel

Manufacturer

Intel

Server

Type

Server

Broadwell-DT

Core Architecture

Haswell-EP

Intel BGA 1364

Socket

Intel Socket 2011-3

Intel Iris Pro P6300

Integrated Graphics

N/A

Xeon E3 (Broadwell-DT)

Generation

Xeon E5 (Haswell-EP)

Package

-

Transistor Count

2.6 billions

14 nm

Manufacturing Process

22 nm

47 W

Power Consumption

135 W

Intel

Foundry

Intel

182 mm²

Die Size

356 mm²

CPU Performance

2 GHz

Performance Core Base Frequency

2.9 GHz

3.3 GHz

Performance Core Turbo Frequency

3.5 GHz

4

Total Core Count

10

8

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

20.0

Multiplier

29.0

64 KB per core

L1 Cache

64 K per core

256 KB per core

L2 Cache

256 K per core

6 MB shared

L3 Cache

25 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3-1600

Memory Types

DDR4-2133,DDR3-2133

2

Max Memory Channels

4

25.6 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Miscellaneous

Intel Xeon E3 1278L v4

Official Website

-

3

PCIe Version

3

-

PCIe Lanes

40

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