Intel Xeon Gold 6421N vs AMD EPYC 7251

VS

Intel Xeon Gold 6421N

AMD EPYC 7251

We compared two server CPUs: Intel Xeon Gold 6421N with 32 cores 1.8GHz and AMD EPYC 7251 with 8 cores 2.1GHz . 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

Released 5 years and 7 months late

Higher specification of memory (4400 vs 2400)

Newer PCIe version (5 vs 3)

Larger L3 cache size (60MB vs 32MB)

More modern manufacturing process (10nm vs 14nm)

AMD EPYC 7251 's Advantages

Higher base frequency (2.1GHz vs 1.8GHz)

Lower TDP (120W vs 185W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon Gold 6421N +169%

2104

AMD EPYC 7251

781

Geekbench 6 Multi Core

Intel Xeon Gold 6421N +243%

12541

AMD EPYC 7251

3651

Geekbench 5 Single Core

Intel Xeon Gold 6421N +57%

848

AMD EPYC 7251

537

Geekbench 5 Multi Core

Intel Xeon Gold 6421N +1639%

9394

AMD EPYC 7251

540

Intel Xeon Gold 6421N

VS

AMD EPYC 7251

General Parameters

Jan 2023

Release Date

Jun 2017

Intel

Manufacturer

AMD

Server

Type

Server

Sapphire Rapids

Core Architecture

Naples

Intel Socket 4677

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

Xeon Gold (Sapphire Rapids-SP)

Generation

EPYC (Zen (Naples))

Package

-

Transistor Count

4.8 billions

10 nm

Manufacturing Process

14 nm

185 W

Power Consumption

120 W

85 °C

Peak Operating Temperature

81 °C

Intel

Foundry

GlobalFoundries

-

Die Size

213 mm²

CPU Performance

1.8 GHz

Performance Core Base Frequency

2.1 GHz

3.6 GHz

Performance Core Turbo Frequency

2.9 GHz

32

Total Core Count

8

64

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

18.0

Multiplier

21.0

80 K per core

L1 Cache

96 K per core

2 MB per core

L2 Cache

512 K per core

60 MB

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

1

SMP

2

AVX-512 FMA Ports

-

Memory Parameters

DDR5-4400

Memory Types

DDR4-2400

8

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

5

PCIe Version

3

80

PCIe Lanes

-

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