AMD EPYC 7261 vs Intel Xeon E5 2666 v3

VS

AMD EPYC 7261

Intel Xeon E5-2666 v3

We compared two server CPUs: AMD EPYC 7261 with 8 cores 2.5GHz 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

AMD EPYC 7261 's Advantages

Released 3 years and 7 months late

Higher specification of memory (2666 vs 2133)

Larger L3 cache size (32MB vs 25MB)

More modern manufacturing process (14nm vs 22nm)

Intel Xeon E5 2666 v3 's Advantages

Higher base frequency (2.9GHz vs 2.5GHz)

Lower TDP (135W vs 170W)

Score

AMD EPYC 7261

VS

Intel Xeon E5 2666 v3

General Parameters

Jun 2018

Release Date

Nov 2014

AMD

Manufacturer

Intel

Server

Type

Server

Naples

Core Architecture

Haswell-EP

AMD Socket SP3

Socket

Intel Socket 2011-3

N/A

Integrated Graphics

N/A

EPYC (Zen (Naples))

Generation

Xeon E5 (Haswell-EP)

Package

4.8 billions

Transistor Count

2.6 billions

14 nm

Manufacturing Process

22 nm

170 W

Power Consumption

135 W

81 °C

Peak Operating Temperature

-

GlobalFoundries

Foundry

Intel

213 mm²

Die Size

356 mm²

CPU Performance

2.5 GHz

Performance Core Base Frequency

2.9 GHz

Performance Core Turbo Frequency

3.5 GHz

8

Total Core Count

10

16

Total Thread Count

20

100 MHz

Bus Frequency

100 MHz

25.0

Multiplier

29.0

96 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

256 K per core

32 MB shared

L3 Cache

25 MB shared

Yes

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR4-2666

Memory Types

DDR4-2133,DDR3-2133

8

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

3

-

PCIe Lanes

40

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