AMD EPYC 7742 vs AMD EPYC 8434PN

VS

AMD EPYC 7742

AMD EPYC 8434PN

We compared two server CPUs: AMD EPYC 7742 with 64 cores 2.25GHz and AMD EPYC 8434PN with 48 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

Higher base frequency (2.25GHz vs 2GHz)

Larger L3 cache size (256MB vs 128MB)

AMD EPYC 8434PN 's Advantages

Released 4 years and 1 months late

Higher specification of memory (4800 vs 3200)

Newer PCIe version (5 vs 4)

More modern manufacturing process (5nm vs 7nm)

Lower TDP (155W vs 225W)

Score

AMD EPYC 7742

VS

AMD EPYC 8434PN

General Parameters

Aug 2019

Release Date

Sep 2023

AMD

Manufacturer

AMD

Server

Type

Server

Rome

Core Architecture

Siena

AMD Socket SP3

Socket

AMD Socket SP6

N/A

Integrated Graphics

N/A

EPYC (Zen 2 (Rome))

Generation

EPYC (Zen 4c (Siena))

Package

3.8 billions

Transistor Count

35.5 billions

7 nm

Manufacturing Process

5 nm

225 W

Power Consumption

155 W

-

Peak Operating Temperature

85 °C

TSMC

Foundry

TSMC

74 mm²

Die Size

4x73 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

397 mm²

CPU Performance

2.25 GHz

Performance Core Base Frequency

2 GHz

3.4 GHz

Performance Core Turbo Frequency

3 GHz

64

Total Core Count

48

128

Total Thread Count

96

100 MHz

Bus Frequency

100 MHz

22.5

Multiplier

20.0

96 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

256 MB shared

L3 Cache

128 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR5-4800

8

Max Memory Channels

6

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

5

-

PCIe Lanes

96

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