Xeon E7 2820 vs AMD EPYC 7251

VS

Intel Xeon E7-2820

AMD EPYC 7251

We compared two server CPUs: Xeon E7 2820 with 8 cores 2GHz and AMD EPYC 7251 with 8 cores 2.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Xeon E7 2820 's Advantages

Lower TDP (105W vs 120W)

AMD EPYC 7251 's Advantages

Released 6 years and 2 months late

Higher specification of memory (2400 vs 1333)

Higher base frequency (2.1GHz vs 2GHz)

Larger L3 cache size (32MB vs 18MB)

More modern manufacturing process (14nm vs 32nm)

Score

Xeon E7 2820

VS

AMD EPYC 7251

General Parameters

Apr 2011

Release Date

Jun 2017

Intel

Manufacturer

AMD

Server

Type

Server

Westmere-EX

Core Architecture

Naples

Intel Socket 1567

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

Xeon E7(Westmere-EX)

Generation

EPYC (Zen (Naples))

Package

2.6 billions

Transistor Count

4.8 billions

32 nm

Manufacturing Process

14 nm

105 W

Power Consumption

120 W

-

Peak Operating Temperature

81 °C

Intel

Foundry

GlobalFoundries

513 mm²

Die Size

213 mm²

CPU Performance

2 GHz

Performance Core Base Frequency

2.1 GHz

2.266 GHz

Performance Core Turbo Frequency

2.9 GHz

8

Total Core Count

8

16

Total Thread Count

16

133 MHz

Bus Frequency

100 MHz

15.0

Multiplier

21.0

64 KB per core

L1 Cache

96 K per core

256 KB per core

L2 Cache

512 K per core

18 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

2

SMP

2

Memory Parameters

DDR3-1333

Memory Types

DDR4-2400

4

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

-

PCIe Version

3

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