AMD EPYC 9754 vs AMD EPYC 7643

VS

AMD EPYC 9754

AMD EPYC 7643

We compared two server CPUs: AMD EPYC 9754 with 128 cores 2.25GHz and AMD EPYC 7643 with 48 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 9754 's Advantages

Released 2 years and 3 months late

Higher specification of memory (4800 vs 3200)

Newer PCIe version (5 vs 4)

More modern manufacturing process (5nm vs 7nm)

AMD EPYC 7643 's Advantages

Higher base frequency (2.3GHz vs 2.25GHz)

Lower TDP (225W vs 360W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 9754

1709

AMD EPYC 7643

1696

Geekbench 6 Multi Core

AMD EPYC 9754 +104%

20337

AMD EPYC 7643

9939

AMD EPYC 9754

VS

AMD EPYC 7643

General Parameters

Jun 2023

Release Date

Mar 2021

AMD

Manufacturer

AMD

Server

Type

Server

Bergamo

Core Architecture

Milan

AMD Socket SP5

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC (Zen 4c (Bergamo))

Generation

EPYC (Zen 3 (Milan))

Package

71 billions

Transistor Count

33.2 billions

5 nm

Manufacturing Process

7 nm

360 W

Power Consumption

225 W

TSMC

Foundry

TSMC

8x73 mm²

Die Size

8x81 mm²

6 nm

I/O Process Size

12 nm

397 mm²

I/O Die Size

416 mm²

CPU Performance

128

Performance Cores

-

256

Performance Core Threads

-

2.25 GHz

Performance Core Base Frequency

2.3 GHz

3.1 GHz

Performance Core Turbo Frequency

3.6 GHz

128

Total Core Count

48

256

Total Thread Count

96

100 MHz

Bus Frequency

100 MHz

22.5

Multiplier

23.0

64 KB per core

L1 Cache

64 KB per core

1 MB per core

L2 Cache

512 KB per core

256 MB shared

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

-

Cores per CCD

6

2

SMP

2

Memory Parameters

DDR5-4800

Memory Types

DDR4-3200

12

Max Memory Channels

8

460.8 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Miscellaneous

AMD EPYC 9754

Official Website

-

5

PCIe Version

4

128

PCIe Lanes

128

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