AMD EPYC 7643P vs AMD EPYC 7401P

VS

AMD EPYC 7643P

AMD EPYC 7401P

We compared two server CPUs: AMD EPYC 7643P with 48 cores 2.3GHz and AMD EPYC 7401P with 24 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 7643P 's Advantages

Released 6 years and 3 months late

Higher specification of memory (3200 vs 2666)

Newer PCIe version (4 vs 3)

Higher base frequency (2.3GHz vs 2GHz)

Larger L3 cache size (256MB vs 64MB)

More modern manufacturing process (7nm vs 14nm)

AMD EPYC 7401P 's Advantages

Lower TDP (170W vs 225W)

Score

AMD EPYC 7643P

VS

AMD EPYC 7401P

General Parameters

Sep 2023

Release Date

Jun 2017

AMD

Manufacturer

AMD

Server

Type

Server

Milan

Core Architecture

Naples

AMD Socket SP3

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC (Zen 3 (Milan))

Generation

EPYC (Zen (Naples))

Package

33.2 billions

Transistor Count

4.8 billions

7 nm

Manufacturing Process

14 nm

225 W

Power Consumption

170 W

-

Peak Operating Temperature

85 °C

TSMC

Foundry

GlobalFoundries

8x81 mm²

Die Size

213 mm²

12 nm

I/O Process Size

-

416 mm²

I/O Die Size

-

CPU Performance

2.3 GHz

Performance Core Base Frequency

2 GHz

3.6 GHz

Performance Core Turbo Frequency

3 GHz

48

Total Core Count

24

96

Total Thread Count

48

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

20.0

64 KB per core

L1 Cache

96 K per core

512 KB per core

L2 Cache

512 K per core

256 MB shared

L3 Cache

64 MB shared

No

Unlocked Multiplier

Yes

8

Cores per CCD

-

1

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR4-2666

8

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

4

PCIe Version

3

128

PCIe Lanes

-

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