AMD EPYC 7551 vs AMD EPYC 9655

VS

AMD EPYC 7551

AMD EPYC 9655

We compared two server CPUs: AMD EPYC 7551 with 32 cores 2GHz and AMD EPYC 9655 with 96 cores 2.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7551 's Advantages

Lower TDP (180W vs 400W)

AMD EPYC 9655 '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 (2.6GHz vs 2GHz)

Larger L3 cache size (384MB vs 64MB)

More modern manufacturing process (4nm vs 14nm)

Score

AMD EPYC 7551

VS

AMD EPYC 9655

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

99.78 billions

14 nm

Manufacturing Process

4 nm

180 W

Power Consumption

400 W

81 °C

Peak Operating Temperature

-

GlobalFoundries

Foundry

TSMC

213 mm²

Die Size

12x70.6 mm²

-

I/O Process Size

6 nm

-

I/O Die Size

mm²

CPU Performance

-

Performance Cores

96

-

Performance Core Threads

192

2 GHz

Performance Core Base Frequency

2.6 GHz

3 GHz

Performance Core Turbo Frequency

4.5 GHz

32

Total Core Count

96

64

Total Thread Count

192

100 MHz

Bus Frequency

100 MHz

20.0

Multiplier

26.0

96 K per core

L1 Cache

80 KB per core

512 K per core

L2 Cache

1 MB per core

64 MB shared

L3 Cache

384 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 9655

3

PCIe Version

5

-

PCIe Lanes

128

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