Intel Xeon Gold 6421N vs AMD EPYC 9555P

VS

Intel Xeon Gold 6421N

AMD EPYC 9555P

We compared two server CPUs: Intel Xeon Gold 6421N with 32 cores 1.8GHz and AMD EPYC 9555P with 64 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon Gold 6421N 's Advantages

Lower TDP (185W vs 360W)

AMD EPYC 9555P 's Advantages

Released 1 years and 9 months late

Higher specification of memory (6000 vs 4400)

Higher base frequency (3.2GHz vs 1.8GHz)

Larger L3 cache size (256MB vs 60MB)

More modern manufacturing process (4nm vs 10nm)

Score

Intel Xeon Gold 6421N

VS

AMD EPYC 9555P

General Parameters

Jan 2023

Release Date

Oct 2024

Intel

Manufacturer

AMD

Server

Type

Server

Sapphire Rapids

Core Architecture

Turin

Intel Socket 4677

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

Xeon Gold (Sapphire Rapids-SP)

Generation

EPYC(Zen 5 (Turin))

Package

-

Transistor Count

66.52 billions

10 nm

Manufacturing Process

4 nm

185 W

Power Consumption

360 W

85 °C

Peak Operating Temperature

-

Intel

Foundry

TSMC

-

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

1.8 GHz

Performance Core Base Frequency

3.2 GHz

3.6 GHz

Performance Core Turbo Frequency

4.4 GHz

32

Total Core Count

64

Total Thread Count

128

100 MHz

Bus Frequency

100 MHz

18.0

Multiplier

32.0

80 K per core

L1 Cache

80 KB per core

2 MB per core

L2 Cache

1 MB per core

60 MB

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

1

SMP

1

2

AVX-512 FMA Ports

-

Memory Parameters

DDR5-4400

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 9555P

5

PCIe Version

5

80

PCIe Lanes

128

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