AMD EPYC 9255 vs Intel Xeon Gold 6421N

VS

AMD EPYC 9255

Intel Xeon Gold 6421N

We compared two server CPUs: AMD EPYC 9255 with 24 cores 3.25GHz and Intel Xeon Gold 6421N with 32 cores 1.8GHz . 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 1 years and 9 months late

Higher specification of memory (6000 vs 4400)

Higher base frequency (3.25GHz vs 1.8GHz)

Larger L3 cache size (128MB vs 60MB)

More modern manufacturing process (4nm vs 10nm)

Intel Xeon Gold 6421N 's Advantages

Lower TDP (185W vs 200W)

Score

AMD EPYC 9255

VS

Intel Xeon Gold 6421N

General Parameters

Oct 2024

Release Date

Jan 2023

AMD

Manufacturer

Intel

Server

Type

Server

Turin

Core Architecture

Sapphire Rapids

AMD Socket SP5

Socket

Intel Socket 4677

N/A

Integrated Graphics

N/A

EPYC(Zen 5 (Turin))

Generation

Xeon Gold (Sapphire Rapids-SP)

Package

33.26 billions

Transistor Count

-

4 nm

Manufacturing Process

10 nm

200 W

Power Consumption

185 W

-

Peak Operating Temperature

85 °C

TSMC

Foundry

Intel

4x70.6 mm²

Die Size

-

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

1.8 GHz

4.8 GHz

Performance Core Turbo Frequency

3.6 GHz

24

Total Core Count

32

48

Total Thread Count

64

100 MHz

Bus Frequency

100 MHz

32.5

Multiplier

18.0

80 KB per core

L1 Cache

80 K per core

1 MB per core

L2 Cache

2 MB per core

128 MB shared

L3 Cache

60 MB

No

Unlocked Multiplier

No

2

SMP

1

-

AVX-512 FMA Ports

2

Memory Parameters

DDR5-6000

Memory Types

DDR5-4400

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

5

128

PCIe Lanes

80

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