Intel Xeon E5 2665 vs Intel Xeon E5 2678 v3

VS

Intel Xeon E5-2665

Intel Xeon E5-2678 v3

We compared two server CPUs: Intel Xeon E5 2665 with 8 cores 2.4GHz and Intel Xeon E5 2678 v3 with 12 cores 2.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 2665 's Advantages

Lower TDP (115W vs 120W)

Intel Xeon E5 2678 v3 's Advantages

Released 2 years and 10 months late

Higher specification of memory (2133 vs 3)

Higher base frequency (2.5GHz vs 2.4GHz)

Larger L3 cache size (30MB vs 20MB)

More modern manufacturing process (22nm vs 32nm)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5 2665

554

Intel Xeon E5 2678 v3 +70%

945

Geekbench 6 Multi Core

Intel Xeon E5 2665

4680

Intel Xeon E5 2678 v3 +59%

7467

Intel Xeon E5 2665

VS

Intel Xeon E5 2678 v3

General Parameters

Mar 2012

Release Date

Jan 2015

Intel

Manufacturer

Intel

Server

Type

Server

Sandy Bridge-EP

Core Architecture

Haswell-EP

Intel Socket 2011

Socket

Intel Socket 2011-3

N/A

Integrated Graphics

N/A

Xeon E5 (Sandy Bridge-EP)

Generation

Xeon E5 (Haswell-EP)

Package

2.27 billions

Transistor Count

2.6 billions

32 nm

Manufacturing Process

22 nm

115 W

Power Consumption

120 W

Intel

Foundry

Intel

435 mm²

Die Size

356 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.5 GHz

3.1 GHz

Performance Core Turbo Frequency

3.3 GHz

8

Total Core Count

12

16

Total Thread Count

24

100 MHz

Bus Frequency

100 MHz

24.0

Multiplier

25.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

20 MB shared

L3 Cache

30 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR3

Memory Types

DDR3,DDR4-2133

4

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

3

-

PCIe Lanes

40

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