AMD EPYC 7251 vs AMD EPYC 9654

VS

AMD EPYC 7251

AMD EPYC 9654

We compared two server CPUs: AMD EPYC 7251 with 8 cores 2.1GHz and AMD EPYC 9654 with 96 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7251 's Advantages

Lower TDP (120W vs 360W)

AMD EPYC 9654 's Advantages

Released 5 years and 5 months late

Higher specification of memory (4800 vs 2400)

Newer PCIe version (5 vs 3)

Higher base frequency (2.4GHz vs 2.1GHz)

Larger L3 cache size (384MB vs 32MB)

More modern manufacturing process (5nm vs 14nm)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 7251

781

AMD EPYC 9654 +154%

1984

Geekbench 6 Multi Core

AMD EPYC 7251

3651

AMD EPYC 9654 +446%

19940

AMD EPYC 7251

VS

AMD EPYC 9654

General Parameters

Jun 2017

Release Date

Nov 2022

AMD

Manufacturer

AMD

Server

Type

Server

Naples

Core Architecture

Genoa

AMD Socket SP3

Socket

AMD Socket SP5

N/A

Integrated Graphics

N/A

EPYC (Zen (Naples))

Generation

EPYC (Zen 4 (Genoa))

Package

4.8 billions

Transistor Count

78.84 billions

14 nm

Manufacturing Process

5 nm

120 W

Power Consumption

360 W

81 °C

Peak Operating Temperature

-

GlobalFoundries

Foundry

TSMC

213 mm²

Die Size

12x72 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

397 mm²

CPU Performance

2.1 GHz

Performance Core Base Frequency

2.4 GHz

2.9 GHz

Performance Core Turbo Frequency

3.7 GHz

8

Total Core Count

96

16

Total Thread Count

192

100 MHz

Bus Frequency

100 MHz

21.0

Multiplier

24.0

96 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

32 MB shared

L3 Cache

384 MB shared

Yes

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR4-2400

Memory Types

DDR5-4800

8

Max Memory Channels

12

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

5

-

PCIe Lanes

128

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