AMD EPYC 9124 vs AMD EPYC 7643

VS

AMD EPYC 9124

AMD EPYC 7643

We compared two server CPUs: AMD EPYC 9124 with 16 cores 3GHz 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 9124 's Advantages

Released 1 years and 8 months late

Higher specification of memory (4800 vs 3200)

Newer PCIe version (5 vs 4)

Higher base frequency (3GHz vs 2.3GHz)

More modern manufacturing process (5nm vs 7nm)

Lower TDP (200W vs 225W)

AMD EPYC 7643 's Advantages

Larger L3 cache size (256MB vs 64MB)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 9124 +16%

1970

AMD EPYC 7643

1696

Geekbench 6 Multi Core

AMD EPYC 9124 +67%

16674

AMD EPYC 7643

9939

AMD EPYC 9124

VS

AMD EPYC 7643

General Parameters

Nov 2022

Release Date

Mar 2021

AMD

Manufacturer

AMD

Server

Type

Server

Genoa

Core Architecture

Milan

AMD Socket SP5

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC (Zen 4 (Genoa))

Generation

EPYC (Zen 3 (Milan))

Package

26.28 billions

Transistor Count

33.2 billions

5 nm

Manufacturing Process

7 nm

200 W

Power Consumption

225 W

TSMC

Foundry

TSMC

4x72 mm²

Die Size

8x81 mm²

6 nm

I/O Process Size

12 nm

397 mm²

I/O Die Size

416 mm²

CPU Performance

3 GHz

Performance Core Base Frequency

2.3 GHz

3.7 GHz

Performance Core Turbo Frequency

3.6 GHz

16

Total Core Count

48

32

Total Thread Count

96

100 MHz

Bus Frequency

100 MHz

30.0

Multiplier

23.0

64 K per core

L1 Cache

64 KB per core

1 MB per core

L2 Cache

512 KB per core

64 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

Yes

ECC Memory Support

Yes

Miscellaneous

5

PCIe Version

4

128

PCIe Lanes

128

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