AMD EPYC 9645 vs AMD EPYC 8124P

VS

AMD EPYC 9645

AMD EPYC 8124P

We compared two server CPUs: AMD EPYC 9645 with 96 cores 2.3GHz and AMD EPYC 8124P with 16 cores 2.45GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 9645 's Advantages

Released 1 years and 1 months late

Higher specification of memory (6000 vs 4800)

Larger L3 cache size (256MB vs 64MB)

More modern manufacturing process (3nm vs 5nm)

AMD EPYC 8124P 's Advantages

Higher base frequency (2.45GHz vs 2.3GHz)

Lower TDP (125W vs 320W)

Score

AMD EPYC 9645

VS

AMD EPYC 8124P

General Parameters

Oct 2024

Release Date

Sep 2023

AMD

Manufacturer

AMD

Server

Type

Server

Turin

Core Architecture

Siena

AMD Socket SP5

Socket

AMD Socket SP6

N/A

Integrated Graphics

N/A

EPYC(Zen 5c (Turin))

Generation

EPYC (Zen 4c (Siena))

Package

Transistor Count

17.75 billions

3 nm

Manufacturing Process

5 nm

320 W

Power Consumption

125 W

-

Peak Operating Temperature

75 °C

TSMC

Foundry

TSMC

mm²

Die Size

2x73 mm²

6 nm

I/O Process Size

6 nm

mm²

I/O Die Size

397 mm²

CPU Performance

96

Performance Cores

-

192

Performance Core Threads

-

2.3 GHz

Performance Core Base Frequency

2.45 GHz

3.7 GHz

Performance Core Turbo Frequency

3 GHz

96

Total Core Count

16

192

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

24.5

80 KB per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

256 MB shared

L3 Cache

64 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR5-6000

Memory Types

DDR5-4800

6 TB

Max Memory Size

-

12

Max Memory Channels

6

576 GB/s

Max Memory Bandwidth

-

Yes

ECC Memory Support

Yes

Miscellaneous

AMD EPYC 9645

Official Website

-

5

PCIe Version

5

128

PCIe Lanes

96

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