AMD EPYC 7742 vs Xeon E7 4820

VS

AMD EPYC 7742

Intel Xeon E7-4820

We compared two server CPUs: AMD EPYC 7742 with 64 cores 2.25GHz 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 7742 's Advantages

Released 8 years and 4 months late

Higher specification of memory (3200 vs 1333)

Higher base frequency (2.25GHz 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 7742

VS

Xeon E7 4820

General Parameters

Aug 2019

Release Date

Apr 2011

AMD

Manufacturer

Intel

Server

Type

Server

Rome

Core Architecture

Westmere-EX

AMD Socket SP3

Socket

Intel Socket 1567

N/A

Integrated Graphics

N/A

EPYC (Zen 2 (Rome))

Generation

Xeon E7(Westmere-EX)

Package

3.8 billions

Transistor Count

2.6 billions

7 nm

Manufacturing Process

32 nm

225 W

Power Consumption

105 W

TSMC

Foundry

Intel

74 mm²

Die Size

513 mm²

CPU Performance

2.25 GHz

Performance Core Base Frequency

2 GHz

3.4 GHz

Performance Core Turbo Frequency

2.266 GHz

64

Total Core Count

8

128

Total Thread Count

16

100 MHz

Bus Frequency

133 MHz

22.5

Multiplier

15.0

96 K per core

L1 Cache

64 KB per core

512 K per core

L2 Cache

256 KB per core

256 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

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

-

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