AMD EPYC 7402 vs AMD EPYC 9555

VS

AMD EPYC 7402

AMD EPYC 9555

We compared two server CPUs: AMD EPYC 7402 with 24 cores 2.8GHz and AMD EPYC 9555 with 64 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7402 's Advantages

Lower TDP (180W vs 360W)

AMD EPYC 9555 's Advantages

Released 5 years and 2 months late

Higher specification of memory (6000 vs 3200)

Newer PCIe version (5 vs 4)

Higher base frequency (3.2GHz vs 2.8GHz)

Larger L3 cache size (256MB vs 128MB)

More modern manufacturing process (4nm vs 7nm)

Score

AMD EPYC 7402

VS

AMD EPYC 9555

General Parameters

Aug 2019

Release Date

Oct 2024

AMD

Manufacturer

AMD

Server

Type

Server

Rome

Core Architecture

Turin

AMD Socket SP3

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

EPYC (Zen 2 (Rome))

Generation

EPYC(Zen 5 (Turin))

Package

3.8 billions

Transistor Count

66.52 billions

7 nm

Manufacturing Process

4 nm

180 W

Power Consumption

360 W

TSMC

Foundry

TSMC

74 mm²

Die Size

8x70.6 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

mm²

CPU Performance

-

Performance Cores

64

-

Performance Core Threads

128

2.8 GHz

Performance Core Base Frequency

3.2 GHz

3.35 GHz

Performance Core Turbo Frequency

4.4 GHz

24

Total Core Count

64

48

Total Thread Count

128

100 MHz

Bus Frequency

100 MHz

28.0

Multiplier

32.0

96 K per core

L1 Cache

80 KB per core

512 K per core

L2 Cache

1 MB per core

128 MB shared

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR4-3200

Memory Types

DDR5-6000

-

Max Memory Size

6 TB

8

Max Memory Channels

12

-

Max Memory Bandwidth

576 GB/s

Yes

ECC Memory Support

Yes

Miscellaneous

-

Official Website

AMD EPYC 9555

4

PCIe Version

5

-

PCIe Lanes

128

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