AMD EPYC 9255 vs AMD EPYC 7401

VS

AMD EPYC 9255

AMD EPYC 7401

We compared two server CPUs: AMD EPYC 9255 with 24 cores 3.25GHz and AMD EPYC 7401 with 24 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 9255 's Advantages

Released 7 years and 4 months late

Higher specification of memory (6000 vs 2666)

Newer PCIe version (5 vs 3)

Higher base frequency (3.25GHz vs 2GHz)

Larger L3 cache size (128MB vs 64MB)

More modern manufacturing process (4nm vs 14nm)

AMD EPYC 7401 's Advantages

Lower TDP (170W vs 200W)

Score

AMD EPYC 9255

VS

AMD EPYC 7401

General Parameters

Oct 2024

Release Date

Jun 2017

AMD

Manufacturer

AMD

Server

Type

Server

Turin

Core Architecture

Naples

AMD Socket SP5

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC(Zen 5 (Turin))

Generation

EPYC (Zen (Naples))

Package

33.26 billions

Transistor Count

4.8 billions

4 nm

Manufacturing Process

14 nm

200 W

Power Consumption

170 W

-

Peak Operating Temperature

85 °C

TSMC

Foundry

GlobalFoundries

4x70.6 mm²

Die Size

213 mm²

6 nm

I/O Process Size

-

mm²

I/O Die Size

-

CPU Performance

24

Performance Cores

-

48

Performance Core Threads

-

3.25 GHz

Performance Core Base Frequency

2 GHz

4.8 GHz

Performance Core Turbo Frequency

3 GHz

24

Total Core Count

24

48

Total Thread Count

48

100 MHz

Bus Frequency

100 MHz

32.5

Multiplier

20.0

80 KB per core

L1 Cache

96 K per core

1 MB per core

L2 Cache

512 K per core

128 MB shared

L3 Cache

64 MB shared

No

Unlocked Multiplier

Yes

2

SMP

2

Memory Parameters

DDR5-6000

Memory Types

DDR4-2666

6 TB

Max Memory Size

-

12

Max Memory Channels

8

576 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Miscellaneous

AMD EPYC 9255

Official Website

-

5

PCIe Version

3

128

PCIe Lanes

-

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