AMD EPYC 7543 vs Xeon E7 4820

VS

AMD EPYC 7543

Intel Xeon E7-4820

We compared two server CPUs: AMD EPYC 7543 with 32 cores 2.8GHz and Xeon E7 4820 with 8 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7543 's Advantages

Released 9 years and 11 months late

Higher specification of memory (3200 vs 1333)

Higher base frequency (2.8GHz vs 2GHz)

Larger L3 cache size (256MB vs 18MB)

More modern manufacturing process (7nm vs 32nm)

Xeon E7 4820 's Advantages

Lower TDP (105W vs 225W)

Score

AMD EPYC 7543

VS

Xeon E7 4820

General Parameters

Mar 2021

Release Date

Apr 2011

AMD

Manufacturer

Intel

Server

Type

Server

Milan

Core Architecture

Westmere-EX

AMD Socket SP3

Socket

Intel Socket 1567

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

Xeon E7(Westmere-EX)

Package

33.2 billions

Transistor Count

2.6 billions

7 nm

Manufacturing Process

32 nm

225 W

Power Consumption

105 W

TSMC

Foundry

Intel

8x81 mm²

Die Size

513 mm²

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

CPU Performance

2.8 GHz

Performance Core Base Frequency

2 GHz

3.7 GHz

Performance Core Turbo Frequency

2.266 GHz

32

Total Core Count

8

64

Total Thread Count

16

100 MHz

Bus Frequency

133 MHz

28.0

Multiplier

15.0

64 KB per core

L1 Cache

64 KB per core

512 KB per core

L2 Cache

256 KB per core

256 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

4

Cores per CCD

-

2

SMP

4

Memory Parameters

DDR4-3200

Memory Types

DDR3-1333

8

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

-

128

PCIe Lanes

-

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