AMD EPYC 7281 vs AMD EPYC 9255

VS

AMD EPYC 7281

AMD EPYC 9255

We compared two server CPUs: AMD EPYC 7281 with 16 cores 2.1GHz and AMD EPYC 9255 with 24 cores 3.25GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7281 's Advantages

Lower TDP (170W vs 200W)

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 2.1GHz)

Larger L3 cache size (128MB vs 32MB)

More modern manufacturing process (4nm vs 14nm)

Score

AMD EPYC 7281

VS

AMD EPYC 9255

General Parameters

Jun 2017

Release Date

Oct 2024

AMD

Manufacturer

AMD

Server

Type

Server

Naples

Core Architecture

Turin

AMD Socket SP3

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

EPYC (Zen (Naples))

Generation

EPYC(Zen 5 (Turin))

Package

4.8 billions

Transistor Count

33.26 billions

14 nm

Manufacturing Process

4 nm

170 W

Power Consumption

200 W

85 °C

Peak Operating Temperature

-

GlobalFoundries

Foundry

TSMC

213 mm²

Die Size

4x70.6 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

mm²

CPU Performance

-

Performance Cores

24

-

Performance Core Threads

48

2.1 GHz

Performance Core Base Frequency

3.25 GHz

2.7 GHz

Performance Core Turbo Frequency

4.8 GHz

16

Total Core Count

24

32

Total Thread Count

48

100 MHz

Bus Frequency

100 MHz

21.0

Multiplier

32.5

96 K per core

L1 Cache

80 KB per core

512 K per core

L2 Cache

1 MB per core

32 MB shared

L3 Cache

128 MB shared

Yes

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR4-2666

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 9255

3

PCIe Version

5

-

PCIe Lanes

128

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