Intel Xeon E5 2666 v3 vs Xeon E 2456

VS

Intel Xeon E5-2666 v3

Intel Xeon E-2456

We compared two server CPUs: Intel Xeon E5 2666 v3 with 10 cores 2.9GHz and Xeon E 2456 with 6 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 2666 v3 's Advantages

Larger L3 cache size (25MB vs 18MB)

Xeon E 2456 's Advantages

Released 9 years and 1 months late

Higher specification of memory (4800 vs 2133)

Newer PCIe version (5 vs 3)

Higher base frequency (3.3GHz vs 2.9GHz)

More modern manufacturing process (10nm vs 22nm)

Lower TDP (80W vs 135W)

Score

Intel Xeon E5 2666 v3

VS

Xeon E 2456

General Parameters

Nov 2014

Release Date

Dec 2023

Intel

Manufacturer

Intel

Server

Type

Server

Haswell-EP

Core Architecture

Raptor Lake-S

Intel Socket 2011-3

Socket

Intel Socket 1700

N/A

Integrated Graphics

N/A

Xeon E5 (Haswell-EP)

Generation

Xeon E (Raptor Lake)

Package

2.6 billions

Transistor Count

-

22 nm

Manufacturing Process

10 nm

135 W

Power Consumption

80 W

Intel

Foundry

Intel

356 mm²

Die Size

163 mm²

CPU Performance

2.9 GHz

Performance Core Base Frequency

3.3 GHz

3.5 GHz

Performance Core Turbo Frequency

5.1 GHz

10

Total Core Count

6

20

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

29.0

Multiplier

33.0

64 K per core

L1 Cache

80 KB per core

256 K per core

L2 Cache

1.25 MB per core

25 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR4-2133,DDR3-2133

Memory Types

DDR5-4800

4

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

5

40

PCIe Lanes

16

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